321265434 has 16 divisors (see below), whose sum is σ = 734321088. Its totient is φ = 91790112.

The previous prime is 321265421. The next prime is 321265453. The reversal of 321265434 is 434562123.

It is a super-2 number, since 2×321265434² = 206422958166416712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3824547 + ... + 3824630.

It is an arithmetic number, because the mean of its divisors is an integer number (45895068).

Almost surely, 2^321265434 is an apocalyptic number.

321265434 is an abundant number, since it is smaller than the sum of its proper divisors (413055654).

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

321265434 is a wasteful number, since it uses less digits than its factorization.

321265434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7649189.

The product of its digits is 17280, while the sum is 30.

The square root of 321265434 is about 17923.8788770735. The cubic root of 321265434 is about 684.8908018520.

The spelling of 321265434 in words is "three hundred twenty-one million, two hundred sixty-five thousand, four hundred thirty-four".