79090424 has 64 divisors (see below), whose sum is σ = 181094400. Its totient is φ = 31651200.

The previous prime is 79090421. The next prime is 79090447. The reversal of 79090424 is 42409097.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79090421) 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, 49559 + ... + 51129.

It is an arithmetic number, because the mean of its divisors is an integer number (2829600).

Almost surely, 2^79090424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79090424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90547200).

79090424 is an abundant number, since it is smaller than the sum of its proper divisors (102003976).

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

79090424 is a wasteful number, since it uses less digits than its factorization.

79090424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 79090424 is about 8893.2797099833. The cubic root of 79090424 is about 429.2476912321.

The spelling of 79090424 in words is "seventy-nine million, ninety thousand, four hundred twenty-four".