22193980 has 24 divisors (see below), whose sum is σ = 46922400. Its totient is φ = 8817600.

The previous prime is 22193953. The next prime is 22193989. The reversal of 22193980 is 8939122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22193989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (1955100).

Almost surely, 2^22193980 is an apocalyptic number.

22193980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22193980 is an abundant number, since it is smaller than the sum of its proper divisors (24728420).

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

22193980 is a wasteful number, since it uses less digits than its factorization.

22193980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7509 (or 7507 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 22193980 is about 4711.0487155197. The cubic root of 22193980 is about 281.0250692122.

The spelling of 22193980 in words is "twenty-two million, one hundred ninety-three thousand, nine hundred eighty".