1239657048 has 160 divisors (see below), whose sum is σ = 4028428800. Its totient is φ = 348815808.

The previous prime is 1239657043. The next prime is 1239657049. The reversal of 1239657048 is 8407569321.

1239657048 is a `hidden beast` number, since 1 + 2 + 39 + 6 + 570 + 48 = 666.

1239657048 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

1239657048 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1239656994 and 1239657012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239657043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 301873 + ... + 305951.

It is an arithmetic number, because the mean of its divisors is an integer number (25177680).

It is a 1-persistent number, because it is pandigital, but 2⋅1239657048 = 2479314096 is not.

Almost surely, 2^1239657048 is an apocalyptic number.

1239657048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1239657048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014214400).

1239657048 is an abundant number, since it is smaller than the sum of its proper divisors (2788771752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1239657048 is a wasteful number, since it uses less digits than its factorization.

1239657048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171 (or 4158 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1239657048 is about 35208.7637953962. The cubic root of 1239657048 is about 1074.2380172202.

The spelling of 1239657048 in words is "one billion, two hundred thirty-nine million, six hundred fifty-seven thousand, forty-eight".