22521674 has 12 divisors (see below), whose sum is σ = 39298194. Its totient is φ = 9652104.

The previous prime is 22521673. The next prime is 22521683. The reversal of 22521674 is 47612522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14876449 + 7645225 = 3857^2 + 2765^2 .

It is not an unprimeable number, because it can be changed into a prime (22521673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114809 + ... + 115004.

Almost surely, 2^22521674 is an apocalyptic number.

22521674 is a deficient number, since it is larger than the sum of its proper divisors (16776520).

22521674 is a wasteful number, since it uses less digits than its factorization.

22521674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229829 (or 229822 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 22521674 is about 4745.7005805255. The cubic root of 22521674 is about 282.4014285279.

The spelling of 22521674 in words is "twenty-two million, five hundred twenty-one thousand, six hundred seventy-four".