1539970848 has 144 divisors (see below), whose sum is σ = 4732201656. Its totient is φ = 472227840.

The previous prime is 1539970841. The next prime is 1539970903. The reversal of 1539970848 is 8480799351.

It can be written as a sum of positive squares in 4 ways, for example, as 928299024 + 611671824 = 30468^2 + 24732^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1539970794 and 1539970803.

It is not an unprimeable number, because it can be changed into a prime (1539970841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1575736 + ... + 1576712.

Almost surely, 2^1539970848 is an apocalyptic number.

1539970848 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 1539970848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2366100828).

1539970848 is an abundant number, since it is smaller than the sum of its proper divisors (3192230808).

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

1539970848 is a wasteful number, since it uses less digits than its factorization.

1539970848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 1539970848 is about 39242.4623080662. The cubic root of 1539970848 is about 1154.7930635053.

The spelling of 1539970848 in words is "one billion, five hundred thirty-nine million, nine hundred seventy thousand, eight hundred forty-eight".