3925009902 has 32 divisors (see below), whose sum is σ = 8567130240. Its totient is φ = 1188914720.

The previous prime is 3925009897. The next prime is 3925009937. The reversal of 3925009902 is 2099005293.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173413 + ... + 194735.

It is an arithmetic number, because the mean of its divisors is an integer number (267722820).

Almost surely, 2^3925009902 is an apocalyptic number.

3925009902 is an abundant number, since it is smaller than the sum of its proper divisors (4642120338).

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

3925009902 is a wasteful number, since it uses less digits than its factorization.

3925009902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 3925009902 is about 62649.8994572218. The cubic root of 3925009902 is about 1577.4184599409.

The spelling of 3925009902 in words is "three billion, nine hundred twenty-five million, nine thousand, nine hundred two".