22135492 has 12 divisors (see below), whose sum is σ = 38804220. Its totient is φ = 11048576.

The previous prime is 22135481. The next prime is 22135493. The reversal of 22135492 is 29453122.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 17189316 = 2224^2 + 4146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22135492.

It is not an unprimeable number, because it can be changed into a prime (22135493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017 + ... + 6952.

It is an arithmetic number, because the mean of its divisors is an integer number (3233685).

Almost surely, 2^22135492 is an apocalyptic number.

It is an amenable number.

22135492 is a deficient number, since it is larger than the sum of its proper divisors (16668728).

22135492 is a wasteful number, since it uses less digits than its factorization.

22135492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590 (or 9588 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 22135492 is about 4704.8370853835. The cubic root of 22135492 is about 280.7779893895. Note that the first 3 decimals are identical.

The spelling of 22135492 in words is "twenty-two million, one hundred thirty-five thousand, four hundred ninety-two".