28322220024 has 64 divisors (see below), whose sum is σ = 89911814400. Its totient is φ = 8092062432.

The previous prime is 28322220023. The next prime is 28322220049. The reversal of 28322220024 is 42002222382.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 28322220024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28322220023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9364302 + ... + 9367325.

It is an arithmetic number, because the mean of its divisors is an integer number (1404872100).

Almost surely, 2^28322220024 is an apocalyptic number.

28322220024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28322220024 is an abundant number, since it is smaller than the sum of its proper divisors (61589594376).

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

28322220024 is a wasteful number, since it uses less digits than its factorization.

28322220024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18731649 (or 18731639 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The spelling of 28322220024 in words is "twenty-eight billion, three hundred twenty-two million, two hundred twenty thousand, twenty-four".