79946280 has 48 divisors (see below), whose sum is σ = 259826580. Its totient is φ = 21318912.

The previous prime is 79946171. The next prime is 79946299. The reversal of 79946280 is 8264997.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71267364 + 8678916 = 8442^2 + 2946^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110677 + ... + 111396.

Almost surely, 2^79946280 is an apocalyptic number.

It is an amenable number.

79946280 is an abundant number, since it is smaller than the sum of its proper divisors (179880300).

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

79946280 is a wasteful number, since it uses less digits than its factorization.

79946280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222090 (or 222083 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 79946280 is about 8941.2683664008. The cubic root of 79946280 is about 430.7904695507.

The spelling of 79946280 in words is "seventy-nine million, nine hundred forty-six thousand, two hundred eighty".