22897744 has 20 divisors (see below), whose sum is σ = 44445940. Its totient is φ = 11427840.

The previous prime is 22897727. The next prime is 22897757. The reversal of 22897744 is 44779822.

It can be written as a sum of positive squares in 2 ways, for example, as 2755600 + 20142144 = 1660^2 + 4488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22897744.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11374 + ... + 13234.

It is an arithmetic number, because the mean of its divisors is an integer number (2222297).

Almost surely, 2^22897744 is an apocalyptic number.

It is an amenable number.

22897744 is a deficient number, since it is larger than the sum of its proper divisors (21548196).

22897744 is a wasteful number, since it uses less digits than its factorization.

22897744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638 (or 2632 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 22897744 is about 4785.1587225504. The cubic root of 22897744 is about 283.9646190137.

The spelling of 22897744 in words is "twenty-two million, eight hundred ninety-seven thousand, seven hundred forty-four".