22423223004 has 192 divisors, whose sum is σ = 65912448000. Its totient is φ = 5895542016.

The previous prime is 22423223003. The next prime is 22423223033. The reversal of 22423223004 is 40032232422.

It is a happy number.

It is a super-2 number, since 2×22423223004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423223003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33121114 + ... + 33121790.

It is an arithmetic number, because the mean of its divisors is an integer number (343294000).

Almost surely, 2^22423223004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22423223004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32956224000).

22423223004 is an abundant number, since it is smaller than the sum of its proper divisors (43489224996).

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

22423223004 is a wasteful number, since it uses less digits than its factorization.

22423223004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 22423223004 its reverse (40032232422), we get a palindrome (62455455426).

The spelling of 22423223004 in words is "twenty-two billion, four hundred twenty-three million, two hundred twenty-three thousand, four".