679330540 has 48 divisors (see below), whose sum is σ = 1726304832. Its totient is φ = 219211776.

The previous prime is 679330537. The next prime is 679330573. The reversal of 679330540 is 45033976.

It is a super-2 number, since 2×679330540² = 922979965153383200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679330540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140337 + ... + 145096.

It is an arithmetic number, because the mean of its divisors is an integer number (35964684).

Almost surely, 2^679330540 is an apocalyptic number.

It is an amenable number.

679330540 is an abundant number, since it is smaller than the sum of its proper divisors (1046974292).

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

679330540 is a wasteful number, since it uses less digits than its factorization.

679330540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285466 (or 285464 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 679330540 is about 26063.9701503819. The cubic root of 679330540 is about 879.0772610904.

The spelling of 679330540 in words is "six hundred seventy-nine million, three hundred thirty thousand, five hundred forty".