22447401444 has 144 divisors (see below), whose sum is σ = 63206707200. Its totient is φ = 6670460160.

The previous prime is 22447401419. The next prime is 22447401461. The reversal of 22447401444 is 44410474422.

22447401444 is a `hidden beast` number, since 2 + 244 + 7 + 401 + 4 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22447401399 and 22447401408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8805082 + ... + 8807630.

Almost surely, 2^22447401444 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 22447401444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31603353600).

22447401444 is an abundant number, since it is smaller than the sum of its proper divisors (40759305756).

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

22447401444 is a wasteful number, since it uses less digits than its factorization.

22447401444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210 (or 3205 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 36.

Adding to 22447401444 its reverse (44410474422), we get a palindrome (66857875866).

The spelling of 22447401444 in words is "twenty-two billion, four hundred forty-seven million, four hundred one thousand, four hundred forty-four".