22404420444 has 24 divisors (see below), whose sum is σ = 59745121408. Its totient is φ = 6401262960.

The previous prime is 22404420433. The next prime is 22404420481. The reversal of 22404420444 is 44402440422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133359562 + ... + 133359729.

Almost surely, 2^22404420444 is an apocalyptic number.

It is an amenable number.

22404420444 is an abundant number, since it is smaller than the sum of its proper divisors (37340700964).

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

22404420444 is a wasteful number, since it uses less digits than its factorization.

22404420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266719305 (or 266719303 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 22404420444 its reverse (44402440422), we get a palindrome (66806860866).

The spelling of 22404420444 in words is "twenty-two billion, four hundred four million, four hundred twenty thousand, four hundred forty-four".