22944728 has 16 divisors (see below), whose sum is σ = 43092000. Its totient is φ = 11453536.

The previous prime is 22944721. The next prime is 22944737. The reversal of 22944728 is 82744922.

It is a junction number, because it is equal to n+sod(n) for n = 22944691 and 22944700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22944721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3758 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (2693250).

Almost surely, 2^22944728 is an apocalyptic number.

It is an amenable number.

22944728 is a deficient number, since it is larger than the sum of its proper divisors (20147272).

22944728 is a wasteful number, since it uses less digits than its factorization.

22944728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714 (or 4710 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 22944728 is about 4790.0655527874. The cubic root of 22944728 is about 284.1587091488.

The spelling of 22944728 in words is "twenty-two million, nine hundred forty-four thousand, seven hundred twenty-eight".