22336387840 has 576 divisors, whose sum is σ = 65271951360. Its totient is φ = 7245987840.

The previous prime is 22336387811. The next prime is 22336387847. The reversal of 22336387840 is 4878363322.

It is not an unprimeable number, because it can be changed into a prime (22336387847) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 421441254 + ... + 421441306.

It is an arithmetic number, because the mean of its divisors is an integer number (113319360).

Almost surely, 2^22336387840 is an apocalyptic number.

22336387840 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 22336387840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32635975680).

22336387840 is an abundant number, since it is smaller than the sum of its proper divisors (42935563520).

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

22336387840 is a wasteful number, since it uses less digits than its factorization.

22336387840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 22336387840 in words is "twenty-two billion, three hundred thirty-six million, three hundred eighty-seven thousand, eight hundred forty".