22305522440 has 96 divisors (see below), whose sum is σ = 51683443200. Its totient is φ = 8663598720.

The previous prime is 22305522439. The next prime is 22305522461. The reversal of 22305522440 is 4422550322.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14125571 + ... + 14127149.

It is an arithmetic number, because the mean of its divisors is an integer number (538369200).

Almost surely, 2^22305522440 is an apocalyptic number.

22305522440 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 22305522440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25841721600).

22305522440 is an abundant number, since it is smaller than the sum of its proper divisors (29377920760).

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

22305522440 is a wasteful number, since it uses less digits than its factorization.

22305522440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The spelling of 22305522440 in words is "twenty-two billion, three hundred five million, five hundred twenty-two thousand, four hundred forty".