918438912 has 132 divisors (see below), whose sum is σ = 2750938736. Its totient is φ = 306063360.

The previous prime is 918438893. The next prime is 918438919. The reversal of 918438912 is 219834819.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (918438919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246987 + ... + 250677.

Almost surely, 2^918438912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 918438912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375469368).

918438912 is an abundant number, since it is smaller than the sum of its proper divisors (1832499824).

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

918438912 is an equidigital number, since it uses as much as digits as its factorization.

918438912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726 (or 3696 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 918438912 is about 30305.7570768328. The cubic root of 918438912 is about 972.0384072615.

The spelling of 918438912 in words is "nine hundred eighteen million, four hundred thirty-eight thousand, nine hundred twelve".