499090278 has 8 divisors (see below), whose sum is σ = 998180568. Its totient is φ = 166363424.

The previous prime is 499090247. The next prime is 499090307. The reversal of 499090278 is 872090994.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

499090278 is an admirable number.

It is a super-2 number, since 2×499090278² = 498182211188234568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41590851 + ... + 41590862.

It is an arithmetic number, because the mean of its divisors is an integer number (124772571).

Almost surely, 2^499090278 is an apocalyptic number.

499090278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

499090278 is a wasteful number, since it uses less digits than its factorization.

499090278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83181718.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 499090278 is about 22340.3285114611. The cubic root of 499090278 is about 793.2188691968.

The spelling of 499090278 in words is "four hundred ninety-nine million, ninety thousand, two hundred seventy-eight".