918464872 has 16 divisors (see below), whose sum is σ = 1854592740. Its totient is φ = 423906816.

The previous prime is 918464849. The next prime is 918464873. The reversal of 918464872 is 278464819.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 918453636 + 11236 = 30306^2 + 106^2 .

It is not an unprimeable number, because it can be changed into a prime (918464873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4415593 + ... + 4415800.

Almost surely, 2^918464872 is an apocalyptic number.

It is an amenable number.

918464872 is an abundant number, since it is smaller than the sum of its proper divisors (936127868).

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

918464872 is a wasteful number, since it uses less digits than its factorization.

918464872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831412 (or 8831408 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 918464872 is about 30306.1853752662. The cubic root of 918464872 is about 972.0475655114.

The spelling of 918464872 in words is "nine hundred eighteen million, four hundred sixty-four thousand, eight hundred seventy-two".