818279490 has 32 divisors (see below), whose sum is σ = 2244424320. Its totient is φ = 187035264.

The previous prime is 818279489. The next prime is 818279507. The reversal of 818279490 is 94972818.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 1948075 + ... + 1948494.

It is an arithmetic number, because the mean of its divisors is an integer number (70138260).

Almost surely, 2^818279490 is an apocalyptic number.

818279490 is an abundant number, since it is smaller than the sum of its proper divisors (1426144830).

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

818279490 is a wasteful number, since it uses less digits than its factorization.

818279490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896586.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 818279490 is about 28605.5849442028. The cubic root of 818279490 is about 935.3350777451.

The spelling of 818279490 in words is "eight hundred eighteen million, two hundred seventy-nine thousand, four hundred ninety".