22405488 has 40 divisors (see below), whose sum is σ = 66150528. Its totient is φ = 6401472.

The previous prime is 22405463. The next prime is 22405499. The reversal of 22405488 is 88450422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33006 + ... + 33677.

Almost surely, 2^22405488 is an apocalyptic number.

22405488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22405488 is an abundant number, since it is smaller than the sum of its proper divisors (43745040).

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

22405488 is a wasteful number, since it uses less digits than its factorization.

22405488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66701 (or 66695 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 22405488 is about 4733.4435667915. The cubic root of 22405488 is about 281.9149685786.

The spelling of 22405488 in words is "twenty-two million, four hundred five thousand, four hundred eighty-eight".