22004013024 has 144 divisors (see below), whose sum is σ = 71564744160. Its totient is φ = 6282316800.

The previous prime is 22004012957. The next prime is 22004013029. The reversal of 22004013024 is 42031040022.

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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 22004012988 and 22004013006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004013029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3603574 + ... + 3609674.

It is an arithmetic number, because the mean of its divisors is an integer number (496977390).

Almost surely, 2^22004013024 is an apocalyptic number.

22004013024 is a gapful number since it is divisible by the number (24) 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 22004013024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35782372080).

22004013024 is an abundant number, since it is smaller than the sum of its proper divisors (49560731136).

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

22004013024 is a wasteful number, since it uses less digits than its factorization.

22004013024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913 (or 7902 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22004013024 its reverse (42031040022), we get a palindrome (64035053046).

The spelling of 22004013024 in words is "twenty-two billion, four million, thirteen thousand, twenty-four".