499385984 has 16 divisors (see below), whose sum is σ = 994870770. Its totient is φ = 249692928.

The previous prime is 499385947. The next prime is 499385993. The reversal of 499385984 is 489583994.

It can be written as a sum of positive squares in only one way, i.e., 498539584 + 846400 = 22328^2 + 920^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×499385984² = 498772722031296512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1950599 + ... + 1950854.

Almost surely, 2^499385984 is an apocalyptic number.

It is an amenable number.

499385984 is a deficient number, since it is larger than the sum of its proper divisors (495484786).

499385984 is an equidigital number, since it uses as much as digits as its factorization.

499385984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901467 (or 3901455 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 59.

The square root of 499385984 is about 22346.9457420919. The cubic root of 499385984 is about 793.3754963507.

The spelling of 499385984 in words is "four hundred ninety-nine million, three hundred eighty-five thousand, nine hundred eighty-four".