499795578 has 24 divisors (see below), whose sum is σ = 1117823616. Its totient is φ = 161224200.

The previous prime is 499795567. The next prime is 499795643. The reversal of 499795578 is 875597994.

499795578 is a `hidden beast` number, since 4 + 9 + 9 + 79 + 557 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447288 + ... + 448403.

It is an arithmetic number, because the mean of its divisors is an integer number (46575984).

Almost surely, 2^499795578 is an apocalyptic number.

499795578 is an abundant number, since it is smaller than the sum of its proper divisors (618028038).

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

499795578 is a wasteful number, since it uses less digits than its factorization.

499795578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895730 (or 895727 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 63.

The square root of 499795578 is about 22356.1082928134. The cubic root of 499795578 is about 793.5923446737.

The spelling of 499795578 in words is "four hundred ninety-nine million, seven hundred ninety-five thousand, five hundred seventy-eight".