918817344 has 105 divisors (see below), whose sum is σ = 2730147321. Its totient is φ = 305544960.

The previous prime is 918817331. The next prime is 918817369. The reversal of 918817344 is 443718819.

It is a happy number.

The square root of 918817344 is 30312.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4359744 + 914457600 = 2088^2 + 30240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 918817344.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2182254 + ... + 2182674.

Almost surely, 2^918817344 is an apocalyptic number.

918817344 is the 30312-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 918817344

918817344 is an abundant number, since it is smaller than the sum of its proper divisors (1811329977).

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

918817344 is an frugal number, since it uses more digits than its factorization.

918817344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 426 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The cubic root of 918817344 is about 972.1718946107.

It can be divided in two parts, 91881 and 7344, that added together give a square (99225 = 315²).

The spelling of 918817344 in words is "nine hundred eighteen million, eight hundred seventeen thousand, three hundred forty-four".