320639094 has 16 divisors (see below), whose sum is σ = 712531440. Its totient is φ = 106879680.

The previous prime is 320639071. The next prime is 320639101. The reversal of 320639094 is 490936023.

It is a happy number.

It is a super-2 number, since 2×320639094² = 205618857202281672, which contains 22 as substring.

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, 2968827 + ... + 2968934.

It is an arithmetic number, because the mean of its divisors is an integer number (44533215).

Almost surely, 2^320639094 is an apocalyptic number.

320639094 is an abundant number, since it is smaller than the sum of its proper divisors (391892346).

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

320639094 is a wasteful number, since it uses less digits than its factorization.

320639094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937772 (or 5937766 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 320639094 is about 17906.3981302773. The cubic root of 320639094 is about 684.4454239408.

The spelling of 320639094 in words is "three hundred twenty million, six hundred thirty-nine thousand, ninety-four".