22155836 has 12 divisors (see below), whose sum is σ = 39674712. Its totient is φ = 10820208.

The previous prime is 22155829. The next prime is 22155839. The reversal of 22155836 is 63855122.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155839) 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, 64235 + ... + 64578.

It is an arithmetic number, because the mean of its divisors is an integer number (3306226).

Almost surely, 2^22155836 is an apocalyptic number.

It is an amenable number.

22155836 is a deficient number, since it is larger than the sum of its proper divisors (17518876).

22155836 is a wasteful number, since it uses less digits than its factorization.

22155836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128860 (or 128858 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 22155836 is about 4706.9986190778. The cubic root of 22155836 is about 280.8639809781.

The spelling of 22155836 in words is "twenty-two million, one hundred fifty-five thousand, eight hundred thirty-six".