22534044000 has 768 divisors, whose sum is σ = 87376423680. Its totient is φ = 5023334400.

The previous prime is 22534043999. The next prime is 22534044007. The reversal of 22534044000 is 44043522.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22534044007) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76907854 + ... + 76908146.

It is an arithmetic number, because the mean of its divisors is an integer number (113771385).

Almost surely, 2^22534044000 is an apocalyptic number.

22534044000 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 22534044000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43688211840).

22534044000 is an abundant number, since it is smaller than the sum of its proper divisors (64842379680).

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

22534044000 is a wasteful number, since it uses less digits than its factorization.

22534044000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 22534044000 its reverse (44043522), we get a palindrome (22578087522).

The spelling of 22534044000 in words is "twenty-two billion, five hundred thirty-four million, forty-four thousand".