79406418 has 32 divisors (see below), whose sum is σ = 195463296. Its totient is φ = 20942208.

The previous prime is 79406417. The next prime is 79406441. The reversal of 79406418 is 81460497.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (79406417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72171 + ... + 73262.

It is an arithmetic number, because the mean of its divisors is an integer number (6108228).

Almost surely, 2^79406418 is an apocalyptic number.

79406418 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

79406418 is an abundant number, since it is smaller than the sum of its proper divisors (116056878).

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

79406418 is a wasteful number, since it uses less digits than its factorization.

79406418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145458.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 79406418 is about 8911.0278868377. The cubic root of 79406418 is about 429.8185966391.

The spelling of 79406418 in words is "seventy-nine million, four hundred six thousand, four hundred eighteen".