22444490142 has 24 divisors (see below), whose sum is σ = 51490301616. Its totient is φ = 7041408576.

The previous prime is 22444490129. The next prime is 22444490161. The reversal of 22444490142 is 24109444422.

22444490142 is a `hidden beast` number, since 2 + 24 + 4 + 4 + 490 + 142 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22444490097 and 22444490106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36673698 + ... + 36674309.

It is an arithmetic number, because the mean of its divisors is an integer number (2145429234).

Almost surely, 2^22444490142 is an apocalyptic number.

22444490142 is an abundant number, since it is smaller than the sum of its proper divisors (29045811474).

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

22444490142 is a wasteful number, since it uses less digits than its factorization.

22444490142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73348032 (or 73348029 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 22444490142 in words is "twenty-two billion, four hundred forty-four million, four hundred ninety thousand, one hundred forty-two".