918261740 has 72 divisors (see below), whose sum is σ = 2126478480. Its totient is φ = 332830080.

The previous prime is 918261739. The next prime is 918261763. The reversal of 918261740 is 47162819.

It is a junction number, because it is equal to n+sod(n) for n = 918261694 and 918261703.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1483151 + ... + 1483769.

Almost surely, 2^918261740 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 918261740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063239240).

918261740 is an abundant number, since it is smaller than the sum of its proper divisors (1208216740).

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

918261740 is a wasteful number, since it uses less digits than its factorization.

918261740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 918261740 is about 30302.8338608784. The cubic root of 918261740 is about 971.9758993612.

The spelling of 918261740 in words is "nine hundred eighteen million, two hundred sixty-one thousand, seven hundred forty".