79440490 has 16 divisors (see below), whose sum is σ = 151404552. Its totient is φ = 29906944.

The previous prime is 79440467. The next prime is 79440503. The reversal of 79440490 is 9404497.

It can be written as a sum of positive squares in 4 ways, for example, as 52577001 + 26863489 = 7251^2 + 5183^2 .

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 7 ways as a sum of consecutive naturals, for example, 233479 + ... + 233818.

Almost surely, 2^79440490 is an apocalyptic number.

79440490 is a deficient number, since it is larger than the sum of its proper divisors (71964062).

79440490 is a wasteful number, since it uses less digits than its factorization.

79440490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467321.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 79440490 is about 8912.9394702309. The cubic root of 79440490 is about 429.8800639003.

The spelling of 79440490 in words is "seventy-nine million, four hundred forty thousand, four hundred ninety".