3931045290 has 32 divisors (see below), whose sum is σ = 10482788160. Its totient is φ = 1048278672.

The previous prime is 3931045271. The next prime is 3931045291. The reversal of 3931045290 is 925401393.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3931045291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7279444 + ... + 7279983.

It is an arithmetic number, because the mean of its divisors is an integer number (327587130).

Almost surely, 2^3931045290 is an apocalyptic number.

3931045290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3931045290 is an abundant number, since it is smaller than the sum of its proper divisors (6551742870).

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

3931045290 is a wasteful number, since it uses less digits than its factorization.

3931045290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14559443 (or 14559437 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3931045290 is about 62698.0485342247. The cubic root of 3931045290 is about 1578.2265646440.

The spelling of 3931045290 in words is "three billion, nine hundred thirty-one million, forty-five thousand, two hundred ninety".