22282477920 has 144 divisors (see below), whose sum is σ = 78855351120. Its totient is φ = 5941983744.

The previous prime is 22282477891. The next prime is 22282477937. The reversal of 22282477920 is 2977428222.

It is a tau number, because it is divible by the number of its divisors (144).

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 23 ways as a sum of consecutive naturals, for example, 247675 + ... + 325434.

It is an arithmetic number, because the mean of its divisors is an integer number (547606605).

Almost surely, 2^22282477920 is an apocalyptic number.

22282477920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22282477920 is an abundant number, since it is smaller than the sum of its proper divisors (56572873200).

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

22282477920 is an equidigital number, since it uses as much as digits as its factorization.

22282477920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573139 (or 573119 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 22282477920 in words is "twenty-two billion, two hundred eighty-two million, four hundred seventy-seven thousand, nine hundred twenty".