320979674 has 16 divisors (see below), whose sum is σ = 505785600. Its totient is φ = 152478480.

The previous prime is 320979671. The next prime is 320979709. The reversal of 320979674 is 476979023.

It is a super-2 number, since 2×320979674² = 206055902242292552, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320979671) 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 7 ways as a sum of consecutive naturals, for example, 16562 + ... + 30269.

It is an arithmetic number, because the mean of its divisors is an integer number (31611600).

Almost surely, 2^320979674 is an apocalyptic number.

320979674 is a deficient number, since it is larger than the sum of its proper divisors (184805926).

320979674 is a wasteful number, since it uses less digits than its factorization.

320979674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47005.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 320979674 is about 17915.9056148440. The cubic root of 320979674 is about 684.6876754735.

The spelling of 320979674 in words is "three hundred twenty million, nine hundred seventy-nine thousand, six hundred seventy-four".