22137268 has 6 divisors (see below), whose sum is σ = 38740226. Its totient is φ = 11068632.

The previous prime is 22137259. The next prime is 22137277. The reversal of 22137268 is 86273122.

It is an interprime number because it is at equal distance from previous prime (22137259) and next prime (22137277).

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 6360484 = 3972^2 + 2522^2 .

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, 2767155 + ... + 2767162.

Almost surely, 2^22137268 is an apocalyptic number.

It is an amenable number.

22137268 is a deficient number, since it is larger than the sum of its proper divisors (16602958).

22137268 is a wasteful number, since it uses less digits than its factorization.

22137268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5534321 (or 5534319 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 22137268 is about 4705.0258235211. The cubic root of 22137268 is about 280.7854984218.

The spelling of 22137268 in words is "twenty-two million, one hundred thirty-seven thousand, two hundred sixty-eight".