22149452 has 24 divisors (see below), whose sum is σ = 41978496. Its totient is φ = 10165248.

The previous prime is 22149451. The next prime is 22149461. The reversal of 22149452 is 25494122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149451) 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 7 ways as a sum of consecutive naturals, for example, 8933 + ... + 11139.

It is an arithmetic number, because the mean of its divisors is an integer number (1749104).

Almost surely, 2^22149452 is an apocalyptic number.

It is an amenable number.

22149452 is a deficient number, since it is larger than the sum of its proper divisors (19829044).

22149452 is a wasteful number, since it uses less digits than its factorization.

22149452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417 (or 2415 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 22149452 is about 4706.3204310799. The cubic root of 22149452 is about 280.8370022639.

The spelling of 22149452 in words is "twenty-two million, one hundred forty-nine thousand, four hundred fifty-two".