22415421240 has 96 divisors (see below), whose sum is σ = 75362227200. Its totient is φ = 5771324160.

The previous prime is 22415421239. The next prime is 22415421253. The reversal of 22415421240 is 4212451422.

It is a happy number.

22415421240 is a `hidden beast` number, since 2 + 2 + 415 + 4 + 2 + 1 + 240 = 666.

It is a super-2 number, since 2×22415421240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 1063096 + ... + 1083975.

It is an arithmetic number, because the mean of its divisors is an integer number (785023200).

Almost surely, 2^22415421240 is an apocalyptic number.

22415421240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22415421240 is an abundant number, since it is smaller than the sum of its proper divisors (52946805960).

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

22415421240 is a wasteful number, since it uses less digits than its factorization.

22415421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147117 (or 2147110 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 22415421240 its reverse (4212451422), we get a palindrome (26627872662).

The spelling of 22415421240 in words is "twenty-two billion, four hundred fifteen million, four hundred twenty-one thousand, two hundred forty".