818840604 has 12 divisors (see below), whose sum is σ = 1910628104. Its totient is φ = 272946864.

The previous prime is 818840597. The next prime is 818840629. The reversal of 818840604 is 406048818.

It is a tau number, because it is divible by the number of its divisors (12).

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, 34118347 + ... + 34118370.

Almost surely, 2^818840604 is an apocalyptic number.

It is an amenable number.

818840604 is an abundant number, since it is smaller than the sum of its proper divisors (1091787500).

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

818840604 is a wasteful number, since it uses less digits than its factorization.

818840604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68236724 (or 68236722 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 818840604 is about 28615.3910334980. The cubic root of 818840604 is about 935.5488228433.

The spelling of 818840604 in words is "eight hundred eighteen million, eight hundred forty thousand, six hundred four".