22235668 has 72 divisors (see below), whose sum is σ = 49846272. Its totient is φ = 8491392.

The previous prime is 22235657. The next prime is 22235683. The reversal of 22235668 is 86653222.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175021 + ... + 175147.

Almost surely, 2^22235668 is an apocalyptic number.

22235668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22235668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24923136).

22235668 is an abundant number, since it is smaller than the sum of its proper divisors (27610604).

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

22235668 is a wasteful number, since it uses less digits than its factorization.

22235668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 186 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 22235668 is about 4715.4711323472. The cubic root of 22235668 is about 281.2009133758.

The spelling of 22235668 in words is "twenty-two million, two hundred thirty-five thousand, six hundred sixty-eight".