22406180 has 48 divisors (see below), whose sum is σ = 49351680. Its totient is φ = 8534400.

The previous prime is 22406177. The next prime is 22406203. The reversal of 22406180 is 8160422.

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 15 ways as a sum of consecutive naturals, for example, 43766 + ... + 44274.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^22406180 is an apocalyptic number.

22406180 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 22406180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24675840).

22406180 is an abundant number, since it is smaller than the sum of its proper divisors (26945500).

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

22406180 is a wasteful number, since it uses less digits than its factorization.

22406180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 22406180 is about 4733.5166631163. The cubic root of 22406180 is about 281.9178708906.

The spelling of 22406180 in words is "twenty-two million, four hundred six thousand, one hundred eighty".