22449447452 has 12 divisors (see below), whose sum is σ = 39414504360. Its totient is φ = 11188160496.

The previous prime is 22449447409. The next prime is 22449447479. The reversal of 22449447452 is 25474494422.

It is a junction number, because it is equal to n+sod(n) for n = 22449447397 and 22449447406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9139427 + ... + 9141882.

It is an arithmetic number, because the mean of its divisors is an integer number (3284542030).

Almost surely, 2^22449447452 is an apocalyptic number.

It is an amenable number.

22449447452 is a deficient number, since it is larger than the sum of its proper divisors (16965056908).

22449447452 is a wasteful number, since it uses less digits than its factorization.

22449447452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18281620 (or 18281618 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 47.

The spelling of 22449447452 in words is "twenty-two billion, four hundred forty-nine million, four hundred forty-seven thousand, four hundred fifty-two".