22422402144 has 144 divisors (see below), whose sum is σ = 67637121552. Its totient is φ = 7021707264.

The previous prime is 22422402131. The next prime is 22422402179. The reversal of 22422402144 is 44120422422.

22422402144 is a `hidden beast` number, since 2 + 242 + 2 + 402 + 14 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

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, 2899467 + ... + 2907189.

It is an arithmetic number, because the mean of its divisors is an integer number (469702233).

Almost surely, 2^22422402144 is an apocalyptic number.

22422402144 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 22422402144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33818560776).

22422402144 is an abundant number, since it is smaller than the sum of its proper divisors (45214719408).

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

22422402144 is a wasteful number, since it uses less digits than its factorization.

22422402144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349 (or 8338 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 22422402144 its reverse (44120422422), we get a palindrome (66542824566).

The spelling of 22422402144 in words is "twenty-two billion, four hundred twenty-two million, four hundred two thousand, one hundred forty-four".