679152440 has 32 divisors (see below), whose sum is σ = 1529010000. Its totient is φ = 271497984.

The previous prime is 679152437. The next prime is 679152451. The reversal of 679152440 is 44251976.

It is a super-2 number, since 2×679152440² = 922496073515907200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679152394 and 679152403.

It is a congruent number.

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, 79916 + ... + 88004.

Almost surely, 2^679152440 is an apocalyptic number.

It is an amenable number.

679152440 is an abundant number, since it is smaller than the sum of its proper divisors (849857560).

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

679152440 is a wasteful number, since it uses less digits than its factorization.

679152440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199 (or 10195 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 679152440 is about 26060.5533325753. The cubic root of 679152440 is about 879.0004318519. Note that the first 3 decimals are identical.

The spelling of 679152440 in words is "six hundred seventy-nine million, one hundred fifty-two thousand, four hundred forty".