499649530 has 16 divisors (see below), whose sum is σ = 899646120. Its totient is φ = 199798272.

The previous prime is 499649519. The next prime is 499649543. The reversal of 499649530 is 35946994.

It can be written as a sum of positive squares in 4 ways, for example, as 363016809 + 136632721 = 19053^2 + 11689^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41206 + ... + 51934.

Almost surely, 2^499649530 is an apocalyptic number.

499649530 is a deficient number, since it is larger than the sum of its proper divisors (399996590).

499649530 is a wasteful number, since it uses less digits than its factorization.

499649530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15393.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 499649530 is about 22352.8416538032. The cubic root of 499649530 is about 793.5150371563.

The spelling of 499649530 in words is "four hundred ninety-nine million, six hundred forty-nine thousand, five hundred thirty".