22406384 has 80 divisors (see below), whose sum is σ = 58329600. Its totient is φ = 8052480.

The previous prime is 22406381. The next prime is 22406387. The reversal of 22406384 is 48360422.

It is an interprime number because it is at equal distance from previous prime (22406381) and next prime (22406387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406381) 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 15 ways as a sum of consecutive naturals, for example, 15317 + ... + 16715.

It is an arithmetic number, because the mean of its divisors is an integer number (729120).

Almost surely, 2^22406384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22406384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29164800).

22406384 is an abundant number, since it is smaller than the sum of its proper divisors (35923216).

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

22406384 is a wasteful number, since it uses less digits than its factorization.

22406384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1432 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 22406384 is about 4733.5382115285. The cubic root of 22406384 is about 281.9187264741.

The spelling of 22406384 in words is "twenty-two million, four hundred six thousand, three hundred eighty-four".