22354885440 has 280 divisors, whose sum is σ = 80158205952. Its totient is φ = 5913492480.

The previous prime is 22354885439. The next prime is 22354885459. The reversal of 22354885440 is 4458845322.

22354885440 is a `hidden beast` number, since 2 + 23 + 5 + 4 + 88 + 544 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3288445 + ... + 3295235.

Almost surely, 2^22354885440 is an apocalyptic number.

22354885440 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 22354885440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40079102976).

22354885440 is an abundant number, since it is smaller than the sum of its proper divisors (57803320512).

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

22354885440 is a wasteful number, since it uses less digits than its factorization.

22354885440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947 (or 6928 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 45.

The spelling of 22354885440 in words is "twenty-two billion, three hundred fifty-four million, eight hundred eighty-five thousand, four hundred forty".