79124940 has 36 divisors (see below), whose sum is σ = 240012864. Its totient is φ = 21099936.

The previous prime is 79124939. The next prime is 79124977. The reversal of 79124940 is 4942197.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×79124940² = 12521512260007200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 79124895 and 79124904.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219612 + ... + 219971.

It is an arithmetic number, because the mean of its divisors is an integer number (6667024).

Almost surely, 2^79124940 is an apocalyptic number.

It is an amenable number.

79124940 is an abundant number, since it is smaller than the sum of its proper divisors (160887924).

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

79124940 is a wasteful number, since it uses less digits than its factorization.

79124940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439598 (or 439593 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 79124940 is about 8895.2200647314. The cubic root of 79124940 is about 429.3101250802.

The spelling of 79124940 in words is "seventy-nine million, one hundred twenty-four thousand, nine hundred forty".