22237338240 has 768 divisors, whose sum is σ = 90942808320. Its totient is φ = 5143855104.

The previous prime is 22237338209. The next prime is 22237338307. The reversal of 22237338240 is 4283373222.

22237338240 is a `hidden beast` number, since 2 + 2 + 237 + 3 + 382 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22237338195 and 22237338204.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34369597 + ... + 34370243.

It is an arithmetic number, because the mean of its divisors is an integer number (118415115).

Almost surely, 2^22237338240 is an apocalyptic number.

22237338240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22237338240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45471404160).

22237338240 is an abundant number, since it is smaller than the sum of its proper divisors (68705470080).

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

22237338240 is a wasteful number, since it uses less digits than its factorization.

22237338240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 22237338240 in words is "twenty-two billion, two hundred thirty-seven million, three hundred thirty-eight thousand, two hundred forty".