22980440028 has 144 divisors (see below), whose sum is σ = 67309869984. Its totient is φ = 6048483840.

The previous prime is 22980440023. The next prime is 22980440029. The reversal of 22980440028 is 82004408922.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22980440023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4132626 + ... + 4138182.

Almost surely, 2^22980440028 is an apocalyptic number.

22980440028 is a gapful number since it is divisible by the number (28) 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 22980440028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33654934992).

22980440028 is an abundant number, since it is smaller than the sum of its proper divisors (44329429956).

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

22980440028 is a wasteful number, since it uses less digits than its factorization.

22980440028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 22980440028 in words is "twenty-two billion, nine hundred eighty million, four hundred forty thousand, twenty-eight".