21840303822 has 32 divisors (see below), whose sum is σ = 44191754880. Its totient is φ = 7195404960.

The previous prime is 21840303811. The next prime is 21840303827. The reversal of 21840303822 is 22830304812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21840303827) by changing a digit.

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, 115329 + ... + 238707.

It is an arithmetic number, because the mean of its divisors is an integer number (1380992340).

Almost surely, 2^21840303822 is an apocalyptic number.

21840303822 is an abundant number, since it is smaller than the sum of its proper divisors (22351451058).

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

21840303822 is a wasteful number, since it uses less digits than its factorization.

21840303822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123728.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 21840303822 in words is "twenty-one billion, eight hundred forty million, three hundred three thousand, eight hundred twenty-two".