22237648 has 10 divisors (see below), whose sum is σ = 43085474. Its totient is φ = 11118816.

The previous prime is 22237613. The next prime is 22237651. The reversal of 22237648 is 84673222.

It can be written as a sum of positive squares in only one way, i.e., 22014864 + 222784 = 4692^2 + 472^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694911 + ... + 694942.

Almost surely, 2^22237648 is an apocalyptic number.

It is an amenable number.

22237648 is a deficient number, since it is larger than the sum of its proper divisors (20847826).

22237648 is a wasteful number, since it uses less digits than its factorization.

22237648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389861 (or 1389855 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 22237648 is about 4715.6810748820. The cubic root of 22237648 is about 281.2092597450.

The spelling of 22237648 in words is "twenty-two million, two hundred thirty-seven thousand, six hundred forty-eight".