39402047025 has 240 divisors, whose sum is σ = 84164517888. Its totient is φ = 18044208000.

The previous prime is 39402047021. The next prime is 39402047051. The reversal of 39402047025 is 52074020493.

It is not a de Polignac number, because 39402047025 - 2² = 39402047021 is a prime.

It is a super-2 number, since 2×39402047025² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39402047021) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 29691912 + ... + 29693238.

Almost surely, 2^39402047025 is an apocalyptic number.

It is an amenable number.

39402047025 is an abundant number, since it is smaller than the sum of its proper divisors (44762470863).

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

39402047025 is a wasteful number, since it uses less digits than its factorization.

39402047025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 39402047025 in words is "thirty-nine billion, four hundred two million, forty-seven thousand, twenty-five".