22097180 has 24 divisors (see below), whose sum is σ = 53033568. Its totient is φ = 7576128.

The previous prime is 22097167. The next prime is 22097197. The reversal of 22097180 is 8179022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78779 + ... + 79058.

It is an arithmetic number, because the mean of its divisors is an integer number (2209732).

Almost surely, 2^22097180 is an apocalyptic number.

22097180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22097180 is an abundant number, since it is smaller than the sum of its proper divisors (30936388).

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

22097180 is a wasteful number, since it uses less digits than its factorization.

22097180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157853 (or 157851 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 22097180 is about 4700.7637677297. The cubic root of 22097180 is about 280.6159061244.

The spelling of 22097180 in words is "twenty-two million, ninety-seven thousand, one hundred eighty".