22454374 has 4 divisors (see below), whose sum is σ = 33681564. Its totient is φ = 11227186.

The previous prime is 22454359. The next prime is 22454387. The reversal of 22454374 is 47345422.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5613592 + ... + 5613595.

It is an arithmetic number, because the mean of its divisors is an integer number (8420391).

Almost surely, 2^22454374 is an apocalyptic number.

22454374 is a deficient number, since it is larger than the sum of its proper divisors (11227190).

22454374 is a wasteful number, since it uses less digits than its factorization.

22454374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11227189.

The product of its digits is 26880, while the sum is 31.

The square root of 22454374 is about 4738.6046469399. The cubic root of 22454374 is about 282.1198541550.

Adding to 22454374 its reverse (47345422), we get a palindrome (69799796).

The spelling of 22454374 in words is "twenty-two million, four hundred fifty-four thousand, three hundred seventy-four".