321668934 has 32 divisors (see below), whose sum is σ = 685156320. Its totient is φ = 100326912.

The previous prime is 321668933. The next prime is 321668947. The reversal of 321668934 is 439866123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321668933) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8532 + ... + 26760.

It is an arithmetic number, because the mean of its divisors is an integer number (21411135).

Almost surely, 2^321668934 is an apocalyptic number.

321668934 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

321668934 is an abundant number, since it is smaller than the sum of its proper divisors (363487386).

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

321668934 is a wasteful number, since it uses less digits than its factorization.

321668934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18424.

The product of its digits is 186624, while the sum is 42.

The square root of 321668934 is about 17935.1312791404. The cubic root of 321668934 is about 685.1774161722.

The spelling of 321668934 in words is "three hundred twenty-one million, six hundred sixty-eight thousand, nine hundred thirty-four".