321164402 has 16 divisors (see below), whose sum is σ = 535540992. Its totient is φ = 143447760.

The previous prime is 321164383. The next prime is 321164407. The reversal of 321164402 is 204461123.

It is a super-2 number, since 2×321164402² = 206293146224035208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321164407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198428 + ... + 200039.

It is an arithmetic number, because the mean of its divisors is an integer number (33471312).

Almost surely, 2^321164402 is an apocalyptic number.

321164402 is a deficient number, since it is larger than the sum of its proper divisors (214376590).

321164402 is a wasteful number, since it uses less digits than its factorization.

321164402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398513.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 321164402 is about 17921.0602922930. The cubic root of 321164402 is about 684.8189991876.

The spelling of 321164402 in words is "three hundred twenty-one million, one hundred sixty-four thousand, four hundred two".