879810440 has 32 divisors (see below), whose sum is σ = 1980526680. Its totient is φ = 351754752.

The previous prime is 879810413. The next prime is 879810461. The reversal of 879810440 is 44018978.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 743434756 + 136375684 = 27266^2 + 11678^2 .

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, 109604 + ... + 117356.

Almost surely, 2^879810440 is an apocalyptic number.

It is an amenable number.

879810440 is an abundant number, since it is smaller than the sum of its proper divisors (1100716240).

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

879810440 is a wasteful number, since it uses less digits than its factorization.

879810440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601 (or 10597 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 879810440 is about 29661.5987431561. The cubic root of 879810440 is about 958.2151587783.

The spelling of 879810440 in words is "eight hundred seventy-nine million, eight hundred ten thousand, four hundred forty".