22455730 has 16 divisors (see below), whose sum is σ = 44095104. Its totient is φ = 8165680.

The previous prime is 22455721. The next prime is 22455731. The reversal of 22455730 is 3755422.

It is not an unprimeable number, because it can be changed into a prime (22455731) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 101962 + ... + 102181.

It is an arithmetic number, because the mean of its divisors is an integer number (2755944).

Almost surely, 2^22455730 is an apocalyptic number.

22455730 is a deficient number, since it is larger than the sum of its proper divisors (21639374).

22455730 is a wasteful number, since it uses less digits than its factorization.

22455730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204161.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 22455730 is about 4738.7477248742. The cubic root of 22455730 is about 282.1255330311.

The spelling of 22455730 in words is "twenty-two million, four hundred fifty-five thousand, seven hundred thirty".