818434228 has 24 divisors (see below), whose sum is σ = 1482586112. Its totient is φ = 395013024.

The previous prime is 818434219. The next prime is 818434261. The reversal of 818434228 is 822434818.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976 + ... + 40567.

Almost surely, 2^818434228 is an apocalyptic number.

It is an amenable number.

818434228 is a deficient number, since it is larger than the sum of its proper divisors (664151884).

818434228 is a wasteful number, since it uses less digits than its factorization.

818434228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43711 (or 43709 counting only the distinct ones).

The product of its digits is 98304, while the sum is 40.

The square root of 818434228 is about 28608.2894979759. The cubic root of 818434228 is about 935.3940318307.

The spelling of 818434228 in words is "eight hundred eighteen million, four hundred thirty-four thousand, two hundred twenty-eight".