22248136 has 8 divisors (see below), whose sum is σ = 41715270. Its totient is φ = 11124064.

The previous prime is 22248119. The next prime is 22248139. The reversal of 22248136 is 63184222.

It can be written as a sum of positive squares in only one way, i.e., 16048036 + 6200100 = 4006^2 + 2490^2 .

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22248139) 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 as a sum of consecutive naturals, namely, 1390501 + ... + 1390516.

Almost surely, 2^22248136 is an apocalyptic number.

It is an amenable number.

22248136 is a deficient number, since it is larger than the sum of its proper divisors (19467134).

22248136 is a wasteful number, since it uses less digits than its factorization.

22248136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781023 (or 2781019 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 22248136 is about 4716.7929782851. The cubic root of 22248136 is about 281.2534619492.

The spelling of 22248136 in words is "twenty-two million, two hundred forty-eight thousand, one hundred thirty-six".