918360816 has 20 divisors (see below), whose sum is σ = 2372432232. Its totient is φ = 306120256.

The previous prime is 918360811. The next prime is 918360841. The reversal of 918360816 is 618063819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918360811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9566211 + ... + 9566306.

Almost surely, 2^918360816 is an apocalyptic number.

It is an amenable number.

918360816 is an abundant number, since it is smaller than the sum of its proper divisors (1454071416).

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

918360816 is a wasteful number, since it uses less digits than its factorization.

918360816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19132528 (or 19132522 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 918360816 is about 30304.4685813825. The cubic root of 918360816 is about 972.0108552701.

The spelling of 918360816 in words is "nine hundred eighteen million, three hundred sixty thousand, eight hundred sixteen".