22243044450 has 96 divisors (see below), whose sum is σ = 63344874240. Its totient is φ = 5108443200.

The previous prime is 22243044437. The next prime is 22243044479. The reversal of 22243044450 is 5444034222.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 323404 + ... + 386103.

It is an arithmetic number, because the mean of its divisors is an integer number (659842440).

Almost surely, 2^22243044450 is an apocalyptic number.

22243044450 is an abundant number, since it is smaller than the sum of its proper divisors (41101829790).

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

22243044450 is a wasteful number, since it uses less digits than its factorization.

22243044450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709552 (or 709547 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 22243044450 its reverse (5444034222), we get a palindrome (27687078672).

The spelling of 22243044450 in words is "twenty-two billion, two hundred forty-three million, forty-four thousand, four hundred fifty".