321438934 has 16 divisors (see below), whose sum is σ = 496969200. Its totient is φ = 155831040.

The previous prime is 321438919. The next prime is 321438959. The reversal of 321438934 is 439834123.

It is a junction number, because it is equal to n+sod(n) for n = 321438893 and 321438902.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 25390.

It is an arithmetic number, because the mean of its divisors is an integer number (31060575).

Almost surely, 2^321438934 is an apocalyptic number.

321438934 is a deficient number, since it is larger than the sum of its proper divisors (175530266).

321438934 is a wasteful number, since it uses less digits than its factorization.

321438934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24255.

The product of its digits is 62208, while the sum is 37.

The square root of 321438934 is about 17928.7181359962. The cubic root of 321438934 is about 685.0140718512.

The spelling of 321438934 in words is "three hundred twenty-one million, four hundred thirty-eight thousand, nine hundred thirty-four".