3990920904 has 96 divisors (see below), whose sum is σ = 11185574400. Its totient is φ = 1284145920.

The previous prime is 3990920903. The next prime is 3990920909. The reversal of 3990920904 is 4090290993.

It is a self number, because there is not a number n which added to its sum of digits gives 3990920904.

It is not an unprimeable number, because it can be changed into a prime (3990920903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 977812 + ... + 981884.

It is an arithmetic number, because the mean of its divisors is an integer number (116516400).

Almost surely, 2^3990920904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3990920904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5592787200).

3990920904 is an abundant number, since it is smaller than the sum of its proper divisors (7194653496).

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

3990920904 is a wasteful number, since it uses less digits than its factorization.

3990920904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555 (or 4548 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 3990920904 is about 63173.7358718004. The cubic root of 3990920904 is about 1586.1991282655.

The spelling of 3990920904 in words is "three billion, nine hundred ninety million, nine hundred twenty thousand, nine hundred four".