499977520 has 40 divisors (see below), whose sum is σ = 1328513184. Its totient is φ = 171420672.

The previous prime is 499977481. The next prime is 499977523. The reversal of 499977520 is 25779994.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (499977523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445849 + ... + 446968.

Almost surely, 2^499977520 is an apocalyptic number.

499977520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499977520 is an abundant number, since it is smaller than the sum of its proper divisors (828535664).

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

499977520 is a wasteful number, since it uses less digits than its factorization.

499977520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892837 (or 892831 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 52.

The square root of 499977520 is about 22360.1771012664. The cubic root of 499977520 is about 793.6886308806.

The spelling of 499977520 in words is "four hundred ninety-nine million, nine hundred seventy-seven thousand, five hundred twenty".