79329420 has 72 divisors (see below), whose sum is σ = 245778624. Its totient is φ = 20702208.

The previous prime is 79329409. The next prime is 79329449. The reversal of 79329420 is 2492397.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3772 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (3413592).

Almost surely, 2^79329420 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 79329420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122889312).

79329420 is an abundant number, since it is smaller than the sum of its proper divisors (166449204).

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

79329420 is a wasteful number, since it uses less digits than its factorization.

79329420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439 (or 9434 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 79329420 is about 8906.7064619869. The cubic root of 79329420 is about 429.6796243493.

The spelling of 79329420 in words is "seventy-nine million, three hundred twenty-nine thousand, four hundred twenty".