499699920 has 80 divisors (see below), whose sum is σ = 1551240000. Its totient is φ = 133066752.

The previous prime is 499699919. The next prime is 499699931. The reversal of 499699920 is 29996994.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 298927 + ... + 300593.

It is an arithmetic number, because the mean of its divisors is an integer number (19390500).

Almost surely, 2^499699920 is an apocalyptic number.

499699920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499699920 is an abundant number, since it is smaller than the sum of its proper divisors (1051540080).

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

499699920 is a wasteful number, since it uses less digits than its factorization.

499699920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 57.

The square root of 499699920 is about 22353.9687751415. The cubic root of 499699920 is about 793.5417117727.

It can be divided in two parts, 49 and 9699920, that added together give a palindrome (9699969).

The spelling of 499699920 in words is "four hundred ninety-nine million, six hundred ninety-nine thousand, nine hundred twenty".