320779674 has 24 divisors (see below), whose sum is σ = 702835380. Its totient is φ = 105724608.

The previous prime is 320779673. The next prime is 320779727. The reversal of 320779674 is 476977023.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 320660649 + 119025 = 17907^2 + 345^2 .

It is not an unprimeable number, because it can be changed into a prime (320779673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98517 + ... + 101720.

Almost surely, 2^320779674 is an apocalyptic number.

320779674 is an abundant number, since it is smaller than the sum of its proper divisors (382055706).

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

320779674 is a wasteful number, since it uses less digits than its factorization.

320779674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200334 (or 200331 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 320779674 is about 17910.3231126633. The cubic root of 320779674 is about 684.5454380282.

The spelling of 320779674 in words is "three hundred twenty million, seven hundred seventy-nine thousand, six hundred seventy-four".