22344489378 has 24 divisors (see below), whose sum is σ = 49094937216. Its totient is φ = 7343259000.

The previous prime is 22344489373. The next prime is 22344489379. The reversal of 22344489378 is 87398444322.

22344489378 is a `hidden beast` number, since 223 + 4 + 4 + 48 + 9 + 378 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22344489373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8740698 + ... + 8743253.

It is an arithmetic number, because the mean of its divisors is an integer number (2045622384).

Almost surely, 2^22344489378 is an apocalyptic number.

22344489378 is an abundant number, since it is smaller than the sum of its proper divisors (26750447838).

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

22344489378 is a wasteful number, since it uses less digits than its factorization.

22344489378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17484030 (or 17484027 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The spelling of 22344489378 in words is "twenty-two billion, three hundred forty-four million, four hundred eighty-nine thousand, three hundred seventy-eight".