818491470 has 32 divisors (see below), whose sum is σ = 1965170592. Its totient is φ = 218176512.

The previous prime is 818491441. The next prime is 818491493. The reversal of 818491470 is 74194818.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110194 + ... + 117386.

It is an arithmetic number, because the mean of its divisors is an integer number (61411581).

Almost surely, 2^818491470 is an apocalyptic number.

818491470 is an abundant number, since it is smaller than the sum of its proper divisors (1146679122).

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

818491470 is a wasteful number, since it uses less digits than its factorization.

818491470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10996.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 818491470 is about 28609.2899247779. The cubic root of 818491470 is about 935.4158387457.

The spelling of 818491470 in words is "eight hundred eighteen million, four hundred ninety-one thousand, four hundred seventy".