22738180 has 24 divisors (see below), whose sum is σ = 50559768. Its totient is φ = 8560128.

The previous prime is 22738171. The next prime is 22738181. The reversal of 22738180 is 8183722.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 22297284 = 664^2 + 4722^2 .

It is not an unprimeable number, because it can be changed into a prime (22738181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33099 + ... + 33778.

It is an arithmetic number, because the mean of its divisors is an integer number (2106657).

Almost surely, 2^22738180 is an apocalyptic number.

22738180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22738180 is an abundant number, since it is smaller than the sum of its proper divisors (27821588).

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

22738180 is a wasteful number, since it uses less digits than its factorization.

22738180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66903 (or 66901 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 22738180 is about 4768.4567734226. The cubic root of 22738180 is about 283.3034739775.

The spelling of 22738180 in words is "twenty-two million, seven hundred thirty-eight thousand, one hundred eighty".