679246140 has 48 divisors (see below), whose sum is σ = 1904343840. Its totient is φ = 180898560.

The previous prime is 679246133. The next prime is 679246153. The reversal of 679246140 is 41642976.

It is a happy number.

It is a super-2 number, since 2×679246140² = 922750637409799200, which contains 22 as substring.

It is a congruent number.

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, 42366 + ... + 56154.

It is an arithmetic number, because the mean of its divisors is an integer number (39673830).

Almost surely, 2^679246140 is an apocalyptic number.

679246140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

679246140 is an abundant number, since it is smaller than the sum of its proper divisors (1225097700).

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

679246140 is a wasteful number, since it uses less digits than its factorization.

679246140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14622 (or 14620 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 679246140 is about 26062.3510067684. The cubic root of 679246140 is about 879.0408540744.

The spelling of 679246140 in words is "six hundred seventy-nine million, two hundred forty-six thousand, one hundred forty".