22368144 has 40 divisors (see below), whose sum is σ = 60299712. Its totient is φ = 7131520.

The previous prime is 22368133. The next prime is 22368163. The reversal of 22368144 is 44186322.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9027 + ... + 11234.

Almost surely, 2^22368144 is an apocalyptic number.

22368144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22368144 is an abundant number, since it is smaller than the sum of its proper divisors (37931568).

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

22368144 is a wasteful number, since it uses less digits than its factorization.

22368144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20295 (or 20289 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 22368144 is about 4729.4972248644. The cubic root of 22368144 is about 281.7582556780.

The spelling of 22368144 in words is "twenty-two million, three hundred sixty-eight thousand, one hundred forty-four".