499189278 has 16 divisors (see below), whose sum is σ = 1141004160. Its totient is φ = 142625496.

The previous prime is 499189253. The next prime is 499189319. The reversal of 499189278 is 872981994.

It is a super-2 number, since 2×499189278² = 498379870540322568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5942688 + ... + 5942771.

It is an arithmetic number, because the mean of its divisors is an integer number (71312760).

Almost surely, 2^499189278 is an apocalyptic number.

499189278 is an abundant number, since it is smaller than the sum of its proper divisors (641814882).

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

499189278 is a wasteful number, since it uses less digits than its factorization.

499189278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11885471.

The product of its digits is 2612736, while the sum is 57.

The square root of 499189278 is about 22342.5441255019. The cubic root of 499189278 is about 793.2713136006.

The spelling of 499189278 in words is "four hundred ninety-nine million, one hundred eighty-nine thousand, two hundred seventy-eight".