818475690 has 16 divisors (see below), whose sum is σ = 1964341728. Its totient is φ = 218260176.

The previous prime is 818475689. The next prime is 818475701. The reversal of 818475690 is 96574818.

It is a super-2 number, since 2×818475690² = 1339804910241952200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13641232 + ... + 13641291.

It is an arithmetic number, because the mean of its divisors is an integer number (122771358).

Almost surely, 2^818475690 is an apocalyptic number.

818475690 is an abundant number, since it is smaller than the sum of its proper divisors (1145866038).

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

818475690 is a wasteful number, since it uses less digits than its factorization.

818475690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27282533.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 818475690 is about 28609.0141389038. The cubic root of 818475690 is about 935.4098272976.

The spelling of 818475690 in words is "eight hundred eighteen million, four hundred seventy-five thousand, six hundred ninety".