22738155 has 32 divisors (see below), whose sum is σ = 41783040. Its totient is φ = 10442880.

The previous prime is 22738151. The next prime is 22738169. The reversal of 22738155 is 55183722.

It is not a de Polignac number, because 22738155 - 2² = 22738151 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (22738151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (1305720).

Almost surely, 2^22738155 is an apocalyptic number.

22738155 is a deficient number, since it is larger than the sum of its proper divisors (19044885).

22738155 is a wasteful number, since it uses less digits than its factorization.

22738155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291.

The product of its digits is 16800, while the sum is 33.

The square root of 22738155 is about 4768.4541520287. The cubic root of 22738155 is about 283.3033701494.

The spelling of 22738155 in words is "twenty-two million, seven hundred thirty-eight thousand, one hundred fifty-five".