79445436 has 48 divisors (see below), whose sum is σ = 218695680. Its totient is φ = 21965760.

The previous prime is 79445423. The next prime is 79445453. The reversal of 79445436 is 63454497.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 12651 + ... + 17858.

It is an arithmetic number, because the mean of its divisors is an integer number (4556160).

Almost surely, 2^79445436 is an apocalyptic number.

It is an amenable number.

79445436 is an abundant number, since it is smaller than the sum of its proper divisors (139250244).

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

79445436 is a wasteful number, since it uses less digits than its factorization.

79445436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30554 (or 30552 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 79445436 is about 8913.2169276867. The cubic root of 79445436 is about 429.8889852227. Note that the first 3 decimals are identical.

The spelling of 79445436 in words is "seventy-nine million, four hundred forty-five thousand, four hundred thirty-six".