22744152 has 40 divisors (see below), whose sum is σ = 63706500. Its totient is φ = 7581168.

The previous prime is 22744133. The next prime is 22744157. The reversal of 22744152 is 25144722.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22744157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16902 + ... + 18197.

Almost surely, 2^22744152 is an apocalyptic number.

It is an amenable number.

22744152 is an abundant number, since it is smaller than the sum of its proper divisors (40962348).

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

22744152 is a wasteful number, since it uses less digits than its factorization.

22744152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35117 (or 35104 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 22744152 is about 4769.0829307111. The cubic root of 22744152 is about 283.3282742657.

Adding to 22744152 its reverse (25144722), we get a palindrome (47888874).

The spelling of 22744152 in words is "twenty-two million, seven hundred forty-four thousand, one hundred fifty-two".