22225658 has 32 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 8487360.

The previous prime is 22225639. The next prime is 22225661. The reversal of 22225658 is 85652222.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3173 + ... + 7383.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^22225658 is an apocalyptic number.

22225658 is a deficient number, since it is larger than the sum of its proper divisors (20231302).

22225658 is a wasteful number, since it uses less digits than its factorization.

22225658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262.

The product of its digits is 19200, while the sum is 32.

The square root of 22225658 is about 4714.4096130905. The cubic root of 22225658 is about 281.1587102566.

The spelling of 22225658 in words is "twenty-two million, two hundred twenty-five thousand, six hundred fifty-eight".