79318740 has 48 divisors (see below), whose sum is σ = 226291968. Its totient is φ = 20751744.

The previous prime is 79318721. The next prime is 79318763. The reversal of 79318740 is 4781397.

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, 9292 + ... + 15651.

It is an arithmetic number, because the mean of its divisors is an integer number (4714416).

Almost surely, 2^79318740 is an apocalyptic number.

It is an amenable number.

79318740 is an abundant number, since it is smaller than the sum of its proper divisors (146973228).

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

79318740 is a wasteful number, since it uses less digits than its factorization.

79318740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25008 (or 25006 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 79318740 is about 8906.1068935871. The cubic root of 79318740 is about 429.6603411110.

The spelling of 79318740 in words is "seventy-nine million, three hundred eighteen thousand, seven hundred forty".