22155936 has 48 divisors (see below), whose sum is σ = 63449568. Its totient is φ = 6713600.

The previous prime is 22155911. The next prime is 22155943. The reversal of 22155936 is 63955122.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 22155897 and 22155906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9435 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (1321866).

Almost surely, 2^22155936 is an apocalyptic number.

It is an amenable number.

22155936 is an abundant number, since it is smaller than the sum of its proper divisors (41293632).

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

22155936 is a wasteful number, since it uses less digits than its factorization.

22155936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21005 (or 20997 counting only the distinct ones).

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

The square root of 22155936 is about 4707.0092415461. The cubic root of 22155936 is about 280.8644035357.

The spelling of 22155936 in words is "twenty-two million, one hundred fifty-five thousand, nine hundred thirty-six".