296639664 has 40 divisors (see below), whose sum is σ = 811398960. Its totient is φ = 93063168.

The previous prime is 296639659. The next prime is 296639683. The reversal of 296639664 is 466936692.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 180949 + ... + 182580.

It is an arithmetic number, because the mean of its divisors is an integer number (20284974).

Almost surely, 2^296639664 is an apocalyptic number.

296639664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

296639664 is an abundant number, since it is smaller than the sum of its proper divisors (514759296).

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

296639664 is a wasteful number, since it uses less digits than its factorization.

296639664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363557 (or 363551 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 51.

The square root of 296639664 is about 17223.2303590238. The cubic root of 296639664 is about 666.9240930292.

The spelling of 296639664 in words is "two hundred ninety-six million, six hundred thirty-nine thousand, six hundred sixty-four".