22344431640 has 64 divisors (see below), whose sum is σ = 67300450560. Its totient is φ = 5934768000.

The previous prime is 22344431611. The next prime is 22344431657. The reversal of 22344431640 is 4613444322.

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 in 15 ways as a sum of consecutive naturals, for example, 340804 + ... + 401043.

It is an arithmetic number, because the mean of its divisors is an integer number (1051569540).

Almost surely, 2^22344431640 is an apocalyptic number.

22344431640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22344431640 is an abundant number, since it is smaller than the sum of its proper divisors (44956018920).

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

22344431640 is a wasteful number, since it uses less digits than its factorization.

22344431640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742112 (or 742108 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 22344431640 its reverse (4613444322), we get a palindrome (26957875962).

The spelling of 22344431640 in words is "twenty-two billion, three hundred forty-four million, four hundred thirty-one thousand, six hundred forty".