22303988 has 12 divisors (see below), whose sum is σ = 44608032. Its totient is φ = 9558840.

The previous prime is 22303943. The next prime is 22303993. The reversal of 22303988 is 88930322.

22303988 is an admirable number.

It is a congruent number.

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, 398258 + ... + 398313.

It is an arithmetic number, because the mean of its divisors is an integer number (3717336).

Almost surely, 2^22303988 is an apocalyptic number.

22303988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22303988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22303988 is a wasteful number, since it uses less digits than its factorization.

22303988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796582 (or 796580 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 22303988 is about 4722.7098153497. The cubic root of 22303988 is about 281.4886193524.

The spelling of 22303988 in words is "twenty-two million, three hundred three thousand, nine hundred eighty-eight".