22539466 has 4 divisors (see below), whose sum is σ = 33809202. Its totient is φ = 11269732.

The previous prime is 22539457. The next prime is 22539481. The reversal of 22539466 is 66493522.

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., 14861025 + 7678441 = 3855^2 + 2771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5634865 + ... + 5634868.

Almost surely, 2^22539466 is an apocalyptic number.

22539466 is a deficient number, since it is larger than the sum of its proper divisors (11269736).

22539466 is a wasteful number, since it uses less digits than its factorization.

22539466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269735.

The product of its digits is 77760, while the sum is 37.

The square root of 22539466 is about 4747.5747492799. The cubic root of 22539466 is about 282.4757741515.

It can be divided in two parts, 22539 and 466, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22539466 in words is "twenty-two million, five hundred thirty-nine thousand, four hundred sixty-six".