22438748 has 12 divisors (see below), whose sum is σ = 39321912. Its totient is φ = 11203920.

The previous prime is 22438739. The next prime is 22438781. The reversal of 22438748 is 84783422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215 + ... + 6702.

It is an arithmetic number, because the mean of its divisors is an integer number (3276826).

Almost surely, 2^22438748 is an apocalyptic number.

It is an amenable number.

22438748 is a deficient number, since it is larger than the sum of its proper divisors (16883164).

22438748 is a wasteful number, since it uses less digits than its factorization.

22438748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732 (or 7730 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 22438748 is about 4736.9555623839. The cubic root of 22438748 is about 282.0543965618.

The spelling of 22438748 in words is "twenty-two million, four hundred thirty-eight thousand, seven hundred forty-eight".