22149446 has 32 divisors (see below), whose sum is σ = 37908000. Its totient is φ = 9614080.

The previous prime is 22149433. The next prime is 22149451. The reversal of 22149446 is 64494122.

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 15 ways as a sum of consecutive naturals, for example, 94946 + ... + 95178.

It is an arithmetic number, because the mean of its divisors is an integer number (1184625).

Almost surely, 2^22149446 is an apocalyptic number.

22149446 is a deficient number, since it is larger than the sum of its proper divisors (15758554).

22149446 is a wasteful number, since it uses less digits than its factorization.

22149446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its digits is 13824, while the sum is 32.

The square root of 22149446 is about 4706.3197936392. The cubic root of 22149446 is about 280.8369769056.

The spelling of 22149446 in words is "twenty-two million, one hundred forty-nine thousand, four hundred forty-six".