79431042 has 8 divisors (see below), whose sum is σ = 158862096. Its totient is φ = 26477012.

The previous prime is 79430999. The next prime is 79431043. The reversal of 79431042 is 24013497.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

79431042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (79431043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6619248 + ... + 6619259.

It is an arithmetic number, because the mean of its divisors is an integer number (19857762).

Almost surely, 2^79431042 is an apocalyptic number.

79431042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79431042 is a wasteful number, since it uses less digits than its factorization.

79431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13238512.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 79431042 is about 8912.4094385301. The cubic root of 79431042 is about 429.8630210889.

The spelling of 79431042 in words is "seventy-nine million, four hundred thirty-one thousand, forty-two".