22358881440 has 1536 divisors, whose sum is σ = 103673364480. Its totient is φ = 4379443200.

The previous prime is 22358881429. The next prime is 22358881481. The reversal of 22358881440 is 4418885322.

22358881440 is a `hidden beast` number, since 2 + 23 + 588 + 8 + 1 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 366539010 + ... + 366539070.

It is an arithmetic number, because the mean of its divisors is an integer number (67495680).

Almost surely, 2^22358881440 is an apocalyptic number.

22358881440 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 22358881440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51836682240).

22358881440 is an abundant number, since it is smaller than the sum of its proper divisors (81314483040).

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

22358881440 is a wasteful number, since it uses less digits than its factorization.

22358881440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 22358881440 in words is "twenty-two billion, three hundred fifty-eight million, eight hundred eighty-one thousand, four hundred forty".