499781304 has 72 divisors (see below), whose sum is σ = 1487839080. Its totient is φ = 151446240.

The previous prime is 499781291. The next prime is 499781323. The reversal of 499781304 is 403187994.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 499781304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19972 + ... + 37395.

Almost surely, 2^499781304 is an apocalyptic number.

499781304 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

499781304 is an abundant number, since it is smaller than the sum of its proper divisors (988057776).

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

499781304 is a wasteful number, since it uses less digits than its factorization.

499781304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57401 (or 57383 counting only the distinct ones).

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

The square root of 499781304 is about 22355.7890489242. The cubic root of 499781304 is about 793.5847896883.

The spelling of 499781304 in words is "four hundred ninety-nine million, seven hundred eighty-one thousand, three hundred four".