499438239 has 16 divisors (see below), whose sum is σ = 679754592. Its totient is φ = 326064128.

The previous prime is 499438231. The next prime is 499438253. The reversal of 499438239 is 932834994.

It is a cyclic number.

It is not a de Polignac number, because 499438239 - 2³ = 499438231 is a prime.

It is a super-2 number, since 2×499438239² = 498877109150842242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 499438191 and 499438200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499438231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91639 + ... + 96935.

It is an arithmetic number, because the mean of its divisors is an integer number (42484662).

Almost surely, 2^499438239 is an apocalyptic number.

499438239 is a deficient number, since it is larger than the sum of its proper divisors (180316353).

499438239 is a wasteful number, since it uses less digits than its factorization.

499438239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946.

The product of its digits is 1679616, while the sum is 51.

The square root of 499438239 is about 22348.1148869429. The cubic root of 499438239 is about 793.4031679261.

The spelling of 499438239 in words is "four hundred ninety-nine million, four hundred thirty-eight thousand, two hundred thirty-nine".