22149268 has 6 divisors (see below), whose sum is σ = 38761226. Its totient is φ = 11074632.

The previous prime is 22149251. The next prime is 22149287. The reversal of 22149268 is 86294122.

It can be written as a sum of positive squares in only one way, i.e., 17405584 + 4743684 = 4172^2 + 2178^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2768655 + ... + 2768662.

Almost surely, 2^22149268 is an apocalyptic number.

It is an amenable number.

22149268 is a deficient number, since it is larger than the sum of its proper divisors (16611958).

22149268 is a wasteful number, since it uses less digits than its factorization.

22149268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537321 (or 5537319 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 22149268 is about 4706.3008828591. The cubic root of 22149268 is about 280.8362246051.

The spelling of 22149268 in words is "twenty-two million, one hundred forty-nine thousand, two hundred sixty-eight".