296638578280 has 64 divisors (see below), whose sum is σ = 728269963200. Its totient is φ = 107845301760.

The previous prime is 296638578251. The next prime is 296638578283. The reversal of 296638578280 is 82875836692.

It is a super-2 number, since 2×296638578280² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (296638578283) 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, 2038591 + ... + 2179249.

It is an arithmetic number, because the mean of its divisors is an integer number (11379218175).

Almost surely, 2^296638578280 is an apocalyptic number.

296638578280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

296638578280 is an abundant number, since it is smaller than the sum of its proper divisors (431631384920).

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

296638578280 is a wasteful number, since it uses less digits than its factorization.

296638578280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145474 (or 145470 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 296638578280 in words is "two hundred ninety-six billion, six hundred thirty-eight million, five hundred seventy-eight thousand, two hundred eighty".