22241288 has 8 divisors (see below), whose sum is σ = 41702430. Its totient is φ = 11120640.

The previous prime is 22241281. The next prime is 22241309. The reversal of 22241288 is 88214222.

It can be written as a sum of positive squares in only one way, i.e., 21883684 + 357604 = 4678^2 + 598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22241288.

It is not an unprimeable number, because it can be changed into a prime (22241281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390073 + ... + 1390088.

Almost surely, 2^22241288 is an apocalyptic number.

It is an amenable number.

22241288 is a deficient number, since it is larger than the sum of its proper divisors (19461142).

22241288 is a wasteful number, since it uses less digits than its factorization.

22241288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780167 (or 2780163 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 22241288 is about 4716.0670054612. The cubic root of 22241288 is about 281.2246022827.

The spelling of 22241288 in words is "twenty-two million, two hundred forty-one thousand, two hundred eighty-eight".