22244454 has 12 divisors (see below), whose sum is σ = 48196356. Its totient is φ = 7414812.

The previous prime is 22244441. The next prime is 22244477. The reversal of 22244454 is 45444222.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 617884 + ... + 617919.

It is an arithmetic number, because the mean of its divisors is an integer number (4016363).

Almost surely, 2^22244454 is an apocalyptic number.

22244454 is an abundant number, since it is smaller than the sum of its proper divisors (25951902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22244454 is a wasteful number, since it uses less digits than its factorization.

22244454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235811 (or 1235808 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 22244454 is about 4716.4026545663. The cubic root of 22244454 is about 281.2379455574.

Adding to 22244454 its reverse (45444222), we get a palindrome (67688676).

The spelling of 22244454 in words is "twenty-two million, two hundred forty-four thousand, four hundred fifty-four".