3990260328 has 32 divisors (see below), whose sum is σ = 10074425760. Its totient is φ = 1316916800.

The previous prime is 3990260299. The next prime is 3990260333. The reversal of 3990260328 is 8230620993.

It is a self number, because there is not a number n which added to its sum of digits gives 3990260328.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 820650 + ... + 825497.

It is an arithmetic number, because the mean of its divisors is an integer number (314825805).

Almost surely, 2^3990260328 is an apocalyptic number.

It is an amenable number.

3990260328 is an abundant number, since it is smaller than the sum of its proper divisors (6084165432).

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

3990260328 is a wasteful number, since it uses less digits than its factorization.

3990260328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646257 (or 1646253 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 3990260328 is about 63168.5074067767. The cubic root of 3990260328 is about 1586.1116077060. Note that the first 3 decimals are identical.

The spelling of 3990260328 in words is "three billion, nine hundred ninety million, two hundred sixty thousand, three hundred twenty-eight".