320696464 has 75 divisors (see below), whose sum is σ = 702451785. Its totient is φ = 141831360.

The previous prime is 320696461. The next prime is 320696477. The reversal of 320696464 is 464696023.

320696464 = T₄₄₉ + T₄₅₀ + ... + T₁₂₆₂.

The square root of 320696464 is 17908.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 286963600 + 33732864 = 16940^2 + 5808^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320696461) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8667454 + ... + 8667490.

Almost surely, 2^320696464 is an apocalyptic number.

320696464 is the 17908-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320696464

320696464 is an abundant number, since it is smaller than the sum of its proper divisors (381755321).

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

320696464 is an frugal number, since it uses more digits than its factorization.

320696464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The cubic root of 320696464 is about 684.4862427233.

Multiplying 320696464 by its product of nonzero digits (186624), we get a square (59849656897536 = 7736256²).

The spelling of 320696464 in words is "three hundred twenty million, six hundred ninety-six thousand, four hundred sixty-four".