320364491 has 16 divisors (see below), whose sum is σ = 347043840. Its totient is φ = 294749280.

The previous prime is 320364461. The next prime is 320364523. The reversal of 320364491 is 194463023.

It is not a de Polignac number, because 320364491 - 2⁶ = 320364427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320364461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155021 + ... + 157073.

It is an arithmetic number, because the mean of its divisors is an integer number (21690240).

Almost surely, 2^320364491 is an apocalyptic number.

320364491 is a deficient number, since it is larger than the sum of its proper divisors (26679349).

320364491 is a wasteful number, since it uses less digits than its factorization.

320364491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 320364491 is about 17898.7287537411. The cubic root of 320364491 is about 684.2499763166.

The spelling of 320364491 in words is "three hundred twenty million, three hundred sixty-four thousand, four hundred ninety-one".