79420446 has 64 divisors (see below), whose sum is σ = 203097600. Its totient is φ = 22534848.

The previous prime is 79420421. The next prime is 79420457. The reversal of 79420446 is 64402497.

It is a self number, because there is not a number n which added to its sum of digits gives 79420446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60970 + ... + 62258.

It is an arithmetic number, because the mean of its divisors is an integer number (3173400).

Almost surely, 2^79420446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79420446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101548800).

79420446 is an abundant number, since it is smaller than the sum of its proper divisors (123677154).

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

79420446 is a wasteful number, since it uses less digits than its factorization.

79420446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 79420446 is about 8911.8149666608. The cubic root of 79420446 is about 429.8439058454.

The spelling of 79420446 in words is "seventy-nine million, four hundred twenty thousand, four hundred forty-six".