22256458 has 8 divisors (see below), whose sum is σ = 38153952. Its totient is φ = 9538476.

The previous prime is 22256453. The next prime is 22256471. The reversal of 22256458 is 85465222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22256453) 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 3 ways as a sum of consecutive naturals, for example, 794860 + ... + 794887.

It is an arithmetic number, because the mean of its divisors is an integer number (4769244).

Almost surely, 2^22256458 is an apocalyptic number.

22256458 is a deficient number, since it is larger than the sum of its proper divisors (15897494).

22256458 is a wasteful number, since it uses less digits than its factorization.

22256458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589756.

The product of its digits is 38400, while the sum is 34.

The square root of 22256458 is about 4717.6750629945. The cubic root of 22256458 is about 281.2885255538.

The spelling of 22256458 in words is "twenty-two million, two hundred fifty-six thousand, four hundred fifty-eight".