22544738 has 8 divisors (see below), whose sum is σ = 35287488. Its totient is φ = 10782244.

The previous prime is 22544689. The next prime is 22544759. The reversal of 22544738 is 83744522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22544738² = 1016530422977288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22544698 and 22544707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245006 + ... + 245097.

It is an arithmetic number, because the mean of its divisors is an integer number (4410936).

Almost surely, 2^22544738 is an apocalyptic number.

22544738 is a deficient number, since it is larger than the sum of its proper divisors (12742750).

22544738 is a wasteful number, since it uses less digits than its factorization.

22544738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490128.

The product of its digits is 53760, while the sum is 35.

The square root of 22544738 is about 4748.1299476741. The cubic root of 22544738 is about 282.4977962080.

The spelling of 22544738 in words is "twenty-two million, five hundred forty-four thousand, seven hundred thirty-eight".