22464638 has 24 divisors (see below), whose sum is σ = 40161744. Its totient is φ = 9391200.

The previous prime is 22464623. The next prime is 22464641. The reversal of 22464638 is 83646422.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22464598 and 22464607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1223 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1673406).

Almost surely, 2^22464638 is an apocalyptic number.

22464638 is a deficient number, since it is larger than the sum of its proper divisors (17697106).

22464638 is a wasteful number, since it uses less digits than its factorization.

22464638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648 (or 5641 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 22464638 is about 4739.6875424441. The cubic root of 22464638 is about 282.1628337112.

The spelling of 22464638 in words is "twenty-two million, four hundred sixty-four thousand, six hundred thirty-eight".