3321990628 has 144 divisors (see below), whose sum is σ = 7131013120. Its totient is φ = 1347192000.

The previous prime is 3321990619. The next prime is 3321990649. The reversal of 3321990628 is 8260991233.

It is a super-2 number, since 2×3321990628² = 22071243465039668768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12258133 + ... + 12258403.

Almost surely, 2^3321990628 is an apocalyptic number.

3321990628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3321990628 is an abundant number, since it is smaller than the sum of its proper divisors (3809022492).

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

3321990628 is a wasteful number, since it uses less digits than its factorization.

3321990628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 3321990628 is about 57636.7125016686. The cubic root of 3321990628 is about 1492.1052815472.

The spelling of 3321990628 in words is "three billion, three hundred twenty-one million, nine hundred ninety thousand, six hundred twenty-eight".