22664426 has 4 divisors (see below), whose sum is σ = 33996642. Its totient is φ = 11332212.

The previous prime is 22664423. The next prime is 22664459. The reversal of 22664426 is 62446622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20839225 + 1825201 = 4565^2 + 1351^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22664392 and 22664401.

It is not an unprimeable number, because it can be changed into a prime (22664423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5666105 + ... + 5666108.

Almost surely, 2^22664426 is an apocalyptic number.

22664426 is a deficient number, since it is larger than the sum of its proper divisors (11332216).

22664426 is a wasteful number, since it uses less digits than its factorization.

22664426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332215.

The product of its digits is 27648, while the sum is 32.

The square root of 22664426 is about 4760.7169628114. The cubic root of 22664426 is about 282.9968326548.

The spelling of 22664426 in words is "twenty-two million, six hundred sixty-four thousand, four hundred twenty-six".