22155736 has 8 divisors (see below), whose sum is σ = 41542020. Its totient is φ = 11077864.

The previous prime is 22155733. The next prime is 22155751. The reversal of 22155736 is 63755122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22155698 and 22155707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384726 + ... + 1384741.

Almost surely, 2^22155736 is an apocalyptic number.

It is an amenable number.

22155736 is a deficient number, since it is larger than the sum of its proper divisors (19386284).

22155736 is a wasteful number, since it uses less digits than its factorization.

22155736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769473 (or 2769469 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 22155736 is about 4706.9879965855. The cubic root of 22155736 is about 280.8635584191.

The spelling of 22155736 in words is "twenty-two million, one hundred fifty-five thousand, seven hundred thirty-six".