918911040 has 112 divisors (see below), whose sum is σ = 2940905472. Its totient is φ = 243081216.

The previous prime is 918911009. The next prime is 918911051. The reversal of 918911040 is 40119819.

It is a junction number, because it is equal to n+sod(n) for n = 918910992 and 918911010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118152 + ... + 125688.

Almost surely, 2^918911040 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 918911040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470452736).

918911040 is an abundant number, since it is smaller than the sum of its proper divisors (2021994432).

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

918911040 is a wasteful number, since it uses less digits than its factorization.

918911040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684 (or 7674 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 918911040 is about 30313.5454871251. The cubic root of 918911040 is about 972.2049390899.

The spelling of 918911040 in words is "nine hundred eighteen million, nine hundred eleven thousand, forty".