22138307352 has 96 divisors (see below), whose sum is σ = 69981350400. Its totient is φ = 6190644672.

The previous prime is 22138307329. The next prime is 22138307353. The reversal of 22138307352 is 25370383122.

22138307352 is a `hidden beast` number, since 221 + 3 + 83 + 0 + 7 + 352 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22138307353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443602 + ... + 490977.

It is an arithmetic number, because the mean of its divisors is an integer number (728972400).

Almost surely, 2^22138307352 is an apocalyptic number.

It is an amenable number.

22138307352 is an abundant number, since it is smaller than the sum of its proper divisors (47843043048).

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

22138307352 is a wasteful number, since it uses less digits than its factorization.

22138307352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934645 (or 934638 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 22138307352 in words is "twenty-two billion, one hundred thirty-eight million, three hundred seven thousand, three hundred fifty-two".