499779904 has 28 divisors (see below), whose sum is σ = 1068041044. Its totient is φ = 230667264.

The previous prime is 499779883. The next prime is 499779913. The reversal of 499779904 is 409977994.

It can be written as a sum of positive squares in 2 ways, for example, as 126517504 + 373262400 = 11248^2 + 19320^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 299517 + ... + 301180.

It is an arithmetic number, because the mean of its divisors is an integer number (38144323).

Almost surely, 2^499779904 is an apocalyptic number.

It is an amenable number.

499779904 is an abundant number, since it is smaller than the sum of its proper divisors (568261140).

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

499779904 is a wasteful number, since it uses less digits than its factorization.

499779904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600722 (or 600712 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 58.

The square root of 499779904 is about 22355.7577371021. The cubic root of 499779904 is about 793.5840486843.

It can be divided in two parts, 49977990 and 4, that added together give a palindrome (49977994).

The spelling of 499779904 in words is "four hundred ninety-nine million, seven hundred seventy-nine thousand, nine hundred four".