79338420 has 192 divisors, whose sum is σ = 286003200. Its totient is φ = 17884800.

The previous prime is 79338419. The next prime is 79338437. The reversal of 79338420 is 2483397.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 525345 + ... + 525495.

It is an arithmetic number, because the mean of its divisors is an integer number (1489600).

Almost surely, 2^79338420 is an apocalyptic number.

79338420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79338420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143001600).

79338420 is an abundant number, since it is smaller than the sum of its proper divisors (206664780).

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

79338420 is a wasteful number, since it uses less digits than its factorization.

79338420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 79338420 is about 8907.2116849214. The cubic root of 79338420 is about 429.6958729255.

The spelling of 79338420 in words is "seventy-nine million, three hundred thirty-eight thousand, four hundred twenty".