22401022446 has 32 divisors (see below), whose sum is σ = 54305510400. Its totient is φ = 6788188440.

The previous prime is 22401022393. The next prime is 22401022447. The reversal of 22401022446 is 64422010422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401022447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18855486 + ... + 18856673.

It is an arithmetic number, because the mean of its divisors is an integer number (1697047200).

Almost surely, 2^22401022446 is an apocalyptic number.

22401022446 is an abundant number, since it is smaller than the sum of its proper divisors (31904487954).

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

22401022446 is a wasteful number, since it uses less digits than its factorization.

22401022446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37712181 (or 37712175 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 22401022446 its reverse (64422010422), we get a palindrome (86823032868).

The spelling of 22401022446 in words is "twenty-two billion, four hundred one million, twenty-two thousand, four hundred forty-six".