1242573048 has 80 divisors (see below), whose sum is σ = 3514333680. Its totient is φ = 410147712.

The previous prime is 1242573029. The next prime is 1242573049. The reversal of 1242573048 is 8403752421.

It is a happy number.

1242573048 is a `hidden beast` number, since 1 + 2 + 42 + 573 + 0 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242573049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57436 + ... + 76052.

It is an arithmetic number, because the mean of its divisors is an integer number (43929171).

Almost surely, 2^1242573048 is an apocalyptic number.

1242573048 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 1242573048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757166840).

1242573048 is an abundant number, since it is smaller than the sum of its proper divisors (2271760632).

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

1242573048 is a wasteful number, since it uses less digits than its factorization.

1242573048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18738 (or 18725 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1242573048 is about 35250.1496167038. The cubic root of 1242573048 is about 1075.0796545988.

The spelling of 1242573048 in words is "one billion, two hundred forty-two million, five hundred seventy-three thousand, forty-eight".