499980564 has 36 divisors (see below), whose sum is σ = 1264593876. Its totient is φ = 166560768.

The previous prime is 499980563. The next prime is 499980571. The reversal of 499980564 is 465089994.

499980564 is a `hidden beast` number, since 499 + 98 + 0 + 5 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61496964 + 438483600 = 7842^2 + 20940^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 499980564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499980563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81012 + ... + 86964.

Almost surely, 2^499980564 is an apocalyptic number.

It is an amenable number.

499980564 is an abundant number, since it is smaller than the sum of its proper divisors (764613312).

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

499980564 is a wasteful number, since it uses less digits than its factorization.

499980564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296 (or 8291 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 499980564 is about 22360.2451686022. The cubic root of 499980564 is about 793.6902416086.

The spelling of 499980564 in words is "four hundred ninety-nine million, nine hundred eighty thousand, five hundred sixty-four".