22406642384 has 80 divisors (see below), whose sum is σ = 51705024000. Its totient is φ = 9398422656.

The previous prime is 22406642383. The next prime is 22406642429. The reversal of 22406642384 is 48324660422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406642381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214502 + ... + 301370.

It is an arithmetic number, because the mean of its divisors is an integer number (646312800).

Almost surely, 2^22406642384 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 22406642384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25852512000).

22406642384 is an abundant number, since it is smaller than the sum of its proper divisors (29298381616).

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

22406642384 is an equidigital number, since it uses as much as digits as its factorization.

22406642384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86945 (or 86925 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 22406642384 in words is "twenty-two billion, four hundred six million, six hundred forty-two thousand, three hundred eighty-four".