22235648 has 40 divisors (see below), whose sum is σ = 44893332. Its totient is φ = 11001856.

The previous prime is 22235623. The next prime is 22235651. The reversal of 22235648 is 84653222.

It can be written as a sum of positive squares in 2 ways, for example, as 21086464 + 1149184 = 4592^2 + 1072^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69986 + ... + 70302.

Almost surely, 2^22235648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22235648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22446666).

22235648 is an abundant number, since it is smaller than the sum of its proper divisors (22657684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22235648 is an equidigital number, since it uses as much as digits as its factorization.

22235648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 456 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 22235648 is about 4715.4690116679. The cubic root of 22235648 is about 281.2008290665.

The spelling of 22235648 in words is "twenty-two million, two hundred thirty-five thousand, six hundred forty-eight".