499921884 has 72 divisors (see below), whose sum is σ = 1575520128. Its totient is φ = 129849120.

The previous prime is 499921879. The next prime is 499921931. The reversal of 499921884 is 488129994.

It is a self number, because there is not a number n which added to its sum of digits gives 499921884.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87402 + ... + 92945.

It is an arithmetic number, because the mean of its divisors is an integer number (21882224).

Almost surely, 2^499921884 is an apocalyptic number.

499921884 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

499921884 is an abundant number, since it is smaller than the sum of its proper divisors (1075598244).

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

499921884 is a wasteful number, since it uses less digits than its factorization.

499921884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180375 (or 180370 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 499921884 is about 22358.9329799076. The cubic root of 499921884 is about 793.6591900245.

The spelling of 499921884 in words is "four hundred ninety-nine million, nine hundred twenty-one thousand, eight hundred eighty-four".