321420936 has 16 divisors (see below), whose sum is σ = 803552400. Its totient is φ = 107140304.

The previous prime is 321420917. The next prime is 321420941. The reversal of 321420936 is 639024123.

It is a super-2 number, since 2×321420936² = 206622836198232192, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 6696246 + ... + 6696293.

It is an arithmetic number, because the mean of its divisors is an integer number (50222025).

Almost surely, 2^321420936 is an apocalyptic number.

It is an amenable number.

321420936 is an abundant number, since it is smaller than the sum of its proper divisors (482131464).

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

321420936 is a wasteful number, since it uses less digits than its factorization.

321420936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13392548 (or 13392544 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 321420936 is about 17928.2161968223. The cubic root of 321420936 is about 685.0012865161.

The spelling of 321420936 in words is "three hundred twenty-one million, four hundred twenty thousand, nine hundred thirty-six".