320516674 has 16 divisors (see below), whose sum is σ = 517687200. Its totient is φ = 148273984.

The previous prime is 320516663. The next prime is 320516687. The reversal of 320516674 is 476615023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77884 + ... + 81895.

It is an arithmetic number, because the mean of its divisors is an integer number (32355450).

Almost surely, 2^320516674 is an apocalyptic number.

320516674 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

320516674 is a deficient number, since it is larger than the sum of its proper divisors (197170526).

320516674 is a wasteful number, since it uses less digits than its factorization.

320516674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159857.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 320516674 is about 17902.9794727023. The cubic root of 320516674 is about 684.3583057693.

The spelling of 320516674 in words is "three hundred twenty million, five hundred sixteen thousand, six hundred seventy-four".