22409980 has 12 divisors (see below), whose sum is σ = 47061000. Its totient is φ = 8963984.

The previous prime is 22409977. The next prime is 22409983. The reversal of 22409980 is 8990422.

It is an interprime number because it is at equal distance from previous prime (22409977) and next prime (22409983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22409983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560230 + ... + 560269.

It is an arithmetic number, because the mean of its divisors is an integer number (3921750).

Almost surely, 2^22409980 is an apocalyptic number.

22409980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22409980 is an abundant number, since it is smaller than the sum of its proper divisors (24651020).

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

22409980 is a wasteful number, since it uses less digits than its factorization.

22409980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120508 (or 1120506 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 22409980 is about 4733.9180390032. The cubic root of 22409980 is about 281.9338073771.

The spelling of 22409980 in words is "twenty-two million, four hundred nine thousand, nine hundred eighty".