22135956 has 24 divisors (see below), whose sum is σ = 51815904. Its totient is φ = 7355040.

The previous prime is 22135951. The next prime is 22135963. The reversal of 22135956 is 65953122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (2158996).

Almost surely, 2^22135956 is an apocalyptic number.

It is an amenable number.

22135956 is an abundant number, since it is smaller than the sum of its proper divisors (29679948).

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

22135956 is a wasteful number, since it uses less digits than its factorization.

22135956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911 (or 5909 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 22135956 is about 4704.8863960780. The cubic root of 22135956 is about 280.7799512475.

The spelling of 22135956 in words is "twenty-two million, one hundred thirty-five thousand, nine hundred fifty-six".