22440400412 has 6 divisors (see below), whose sum is σ = 39270700728. Its totient is φ = 11220200204.

The previous prime is 22440400351. The next prime is 22440400421. The reversal of 22440400412 is 21400404422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805050048 + ... + 2805050055.

It is an arithmetic number, because the mean of its divisors is an integer number (6545116788).

Almost surely, 2^22440400412 is an apocalyptic number.

It is an amenable number.

22440400412 is a deficient number, since it is larger than the sum of its proper divisors (16830300316).

22440400412 is a wasteful number, since it uses less digits than its factorization.

22440400412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610100107 (or 5610100105 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 22440400412 its reverse (21400404422), we get a palindrome (43840804834).

The spelling of 22440400412 in words is "twenty-two billion, four hundred forty million, four hundred thousand, four hundred twelve".