22142437272 has 96 divisors (see below), whose sum is σ = 62617183200. Its totient is φ = 7055313408.

The previous prime is 22142437159. The next prime is 22142437277. The reversal of 22142437272 is 27273424122.

22142437272 is a `hidden beast` number, since 2 + 214 + 2 + 4 + 372 + 72 = 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 (22142437277) 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, 3297054 + ... + 3303762.

It is an arithmetic number, because the mean of its divisors is an integer number (652262325).

Almost surely, 2^22142437272 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 22142437272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31308591600).

22142437272 is an abundant number, since it is smaller than the sum of its proper divisors (40474745928).

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

22142437272 is a wasteful number, since it uses less digits than its factorization.

22142437272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737 (or 8730 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The spelling of 22142437272 in words is "twenty-two billion, one hundred forty-two million, four hundred thirty-seven thousand, two hundred seventy-two".