22423430004144 has 120 divisors (see below), whose sum is σ = 62737242630912. Its totient is φ = 6898268931840.

The previous prime is 22423430004133. The next prime is 22423430004169. The reversal of 22423430004144 is 44140003432422.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45106989 + ... + 45601395.

Almost surely, 2^{22423430004144} is an apocalyptic number.

22423430004144 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 22423430004144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31368621315456).

22423430004144 is an abundant number, since it is smaller than the sum of its proper divisors (40313812626768).

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

22423430004144 is a wasteful number, since it uses less digits than its factorization.

22423430004144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500035 (or 500016 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 22423430004144 its reverse (44140003432422), we get a palindrome (66563433436566).

The spelling of 22423430004144 in words is "twenty-two trillion, four hundred twenty-three billion, four hundred thirty million, four thousand, one hundred forty-four".