3902439025 has 24 divisors (see below), whose sum is σ = 5063642424. Its totient is φ = 2980224000.

The previous prime is 3902439011. The next prime is 3902439103. The reversal of 3902439025 is 5209342093.

3902439025 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 1182190689 + 2720248336 = 34383^2 + 52156^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3902439025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9225 + ... + 88825.

It is an arithmetic number, because the mean of its divisors is an integer number (210985101).

Almost surely, 2^3902439025 is an apocalyptic number.

It is an amenable number.

3902439025 is a deficient number, since it is larger than the sum of its proper divisors (1161203399).

3902439025 is a wasteful number, since it uses less digits than its factorization.

3902439025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79701 (or 79696 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 3902439025 is about 62469.5047603229. The cubic root of 3902439025 is about 1574.3889827748.

The spelling of 3902439025 in words is "three billion, nine hundred two million, four hundred thirty-nine thousand, twenty-five".