22899644 has 12 divisors (see below), whose sum is σ = 40731768. Its totient is φ = 11262000.

The previous prime is 22899641. The next prime is 22899659. The reversal of 22899644 is 44699822.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22899595 and 22899604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22899641) 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, 46682 + ... + 47169.

It is an arithmetic number, because the mean of its divisors is an integer number (3394314).

Almost surely, 2^22899644 is an apocalyptic number.

It is an amenable number.

22899644 is a deficient number, since it is larger than the sum of its proper divisors (17832124).

22899644 is a wasteful number, since it uses less digits than its factorization.

22899644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93916 (or 93914 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 22899644 is about 4785.3572489418. The cubic root of 22899644 is about 283.9724730313.

The spelling of 22899644 in words is "twenty-two million, eight hundred ninety-nine thousand, six hundred forty-four".