22406243644 has 24 divisors (see below), whose sum is σ = 41522196240. Its totient is φ = 10542909696.

The previous prime is 22406243641. The next prime is 22406243663. The reversal of 22406243644 is 44634260422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406243641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928459 + ... + 952285.

It is an arithmetic number, because the mean of its divisors is an integer number (1730091510).

Almost surely, 2^22406243644 is an apocalyptic number.

It is an amenable number.

22406243644 is a deficient number, since it is larger than the sum of its proper divisors (19115952596).

22406243644 is a wasteful number, since it uses less digits than its factorization.

22406243644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37677 (or 37675 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

The spelling of 22406243644 in words is "twenty-two billion, four hundred six million, two hundred forty-three thousand, six hundred forty-four".