79281330 has 32 divisors (see below), whose sum is σ = 190512000. Its totient is φ = 21115392.

The previous prime is 79281311. The next prime is 79281337. The reversal of 79281330 is 3318297.

It is a junction number, because it is equal to n+sod(n) for n = 79281291 and 79281300.

It is not an unprimeable number, because it can be changed into a prime (79281337) 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, 41026 + ... + 42914.

It is an arithmetic number, because the mean of its divisors is an integer number (5953500).

Almost surely, 2^79281330 is an apocalyptic number.

79281330 is an abundant number, since it is smaller than the sum of its proper divisors (111230670).

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

79281330 is a wasteful number, since it uses less digits than its factorization.

79281330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 79281330 is about 8904.0064016149. The cubic root of 79281330 is about 429.5927819565.

The spelling of 79281330 in words is "seventy-nine million, two hundred eighty-one thousand, three hundred thirty".