22793144 has 32 divisors (see below), whose sum is σ = 46915200. Its totient is φ = 10295520.

The previous prime is 22793143. The next prime is 22793189. The reversal of 22793144 is 44139722.

It is a self number, because there is not a number n which added to its sum of digits gives 22793144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22793143) 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, 15029 + ... + 16475.

It is an arithmetic number, because the mean of its divisors is an integer number (1466100).

Almost surely, 2^22793144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22793144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23457600).

22793144 is an abundant number, since it is smaller than the sum of its proper divisors (24122056).

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

22793144 is a wasteful number, since it uses less digits than its factorization.

22793144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643 (or 1639 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 22793144 is about 4774.2165849488. The cubic root of 22793144 is about 283.5315626256.

The spelling of 22793144 in words is "twenty-two million, seven hundred ninety-three thousand, one hundred forty-four".