22690148 has 24 divisors (see below), whose sum is σ = 43574328. Its totient is φ = 10273536.

The previous prime is 22690141. The next prime is 22690163. The reversal of 22690148 is 84109622.

It can be written as a sum of positive squares in 4 ways, for example, as 487204 + 22202944 = 698^2 + 4712^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22690141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (1815597).

Almost surely, 2^22690148 is an apocalyptic number.

It is an amenable number.

22690148 is a deficient number, since it is larger than the sum of its proper divisors (20884180).

22690148 is a wasteful number, since it uses less digits than its factorization.

22690148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8303 (or 8301 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 22690148 is about 4763.4176806155. The cubic root of 22690148 is about 283.1038504767.

The spelling of 22690148 in words is "twenty-two million, six hundred ninety thousand, one hundred forty-eight".