22318454240 has 24 divisors (see below), whose sum is σ = 52727348520. Its totient is φ = 8927381632.

The previous prime is 22318454183. The next prime is 22318454251. The reversal of 22318454240 is 4245481322.

It is a super-3 number, since 3×22318454240³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 22318454240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69745010 + ... + 69745329.

It is an arithmetic number, because the mean of its divisors is an integer number (2196972855).

Almost surely, 2^22318454240 is an apocalyptic number.

22318454240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22318454240 is an abundant number, since it is smaller than the sum of its proper divisors (30408894280).

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

22318454240 is a wasteful number, since it uses less digits than its factorization.

22318454240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139490354 (or 139490346 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 22318454240 in words is "twenty-two billion, three hundred eighteen million, four hundred fifty-four thousand, two hundred forty".