22454690 has 16 divisors (see below), whose sum is σ = 40480128. Its totient is φ = 8968176.

The previous prime is 22454689. The next prime is 22454701. The reversal of 22454690 is 9645422.

It is a super-2 number, since 2×22454690² = 1008426205992200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7559 + ... + 10101.

It is an arithmetic number, because the mean of its divisors is an integer number (2530008).

Almost surely, 2^22454690 is an apocalyptic number.

22454690 is a deficient number, since it is larger than the sum of its proper divisors (18025438).

22454690 is a wasteful number, since it uses less digits than its factorization.

22454690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 22454690 is about 4738.6379899714. The cubic root of 22454690 is about 282.1211775714.

The spelling of 22454690 in words is "twenty-two million, four hundred fifty-four thousand, six hundred ninety".