79944458 has 48 divisors (see below), whose sum is σ = 140652288. Its totient is φ = 33976800.

The previous prime is 79944451. The next prime is 79944461. The reversal of 79944458 is 85444997.

It is a super-2 number, since 2×79944458² = 12782232729827528, which contains 22 as substring.

Its product of digits (1451520) is a multiple of the sum of its prime divisors (360).

It is not an unprimeable number, because it can be changed into a prime (79944451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294863 + ... + 295133.

It is an arithmetic number, because the mean of its divisors is an integer number (2930256).

Almost surely, 2^79944458 is an apocalyptic number.

79944458 is a deficient number, since it is larger than the sum of its proper divisors (60707830).

79944458 is a wasteful number, since it uses less digits than its factorization.

79944458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 360 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 79944458 is about 8941.1664787096. The cubic root of 79944458 is about 430.7871969106.

The spelling of 79944458 in words is "seventy-nine million, nine hundred forty-four thousand, four hundred fifty-eight".