22156774 has 32 divisors (see below), whose sum is σ = 37013760. Its totient is φ = 9900000.

The previous prime is 22156759. The next prime is 22156777. The reversal of 22156774 is 47765122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88149 + ... + 88399.

It is an arithmetic number, because the mean of its divisors is an integer number (1156680).

Almost surely, 2^22156774 is an apocalyptic number.

22156774 is a deficient number, since it is larger than the sum of its proper divisors (14856986).

22156774 is a wasteful number, since it uses less digits than its factorization.

22156774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its digits is 23520, while the sum is 34.

The square root of 22156774 is about 4707.0982568882. The cubic root of 22156774 is about 280.8679445191.

The spelling of 22156774 in words is "twenty-two million, one hundred fifty-six thousand, seven hundred seventy-four".