22748458 has 4 divisors (see below), whose sum is σ = 34122690. Its totient is φ = 11374228.

The previous prime is 22748417. The next prime is 22748459. The reversal of 22748458 is 85484722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14722569 + 8025889 = 3837^2 + 2833^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22748458.

It is not an unprimeable number, because it can be changed into a prime (22748459) 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 as a sum of consecutive naturals, namely, 5687113 + ... + 5687116.

Almost surely, 2^22748458 is an apocalyptic number.

22748458 is a deficient number, since it is larger than the sum of its proper divisors (11374232).

22748458 is a wasteful number, since it uses less digits than its factorization.

22748458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374231.

The product of its digits is 143360, while the sum is 40.

The square root of 22748458 is about 4769.5343588237. The cubic root of 22748458 is about 283.3461533607.

The spelling of 22748458 in words is "twenty-two million, seven hundred forty-eight thousand, four hundred fifty-eight".