22197480 has 64 divisors (see below), whose sum is σ = 67314240. Its totient is φ = 5855232.

The previous prime is 22197479. The next prime is 22197493. The reversal of 22197480 is 8479122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10687 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (1051785).

Almost surely, 2^22197480 is an apocalyptic number.

22197480 is a gapful number since it is divisible by the number (20) 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 22197480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33657120).

22197480 is an abundant number, since it is smaller than the sum of its proper divisors (45116760).

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

22197480 is a wasteful number, since it uses less digits than its factorization.

22197480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 22197480 is about 4711.4201680597. The cubic root of 22197480 is about 281.0398410263.

The spelling of 22197480 in words is "twenty-two million, one hundred ninety-seven thousand, four hundred eighty".