22040015443 has 4 divisors (see below), whose sum is σ = 22998277008. Its totient is φ = 21081753880.

The previous prime is 22040015419. The next prime is 22040015477. The reversal of 22040015443 is 34451004022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22040015443 - 2⁵ = 22040015411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22040315443) 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 3 ways as a sum of consecutive naturals, for example, 479130748 + ... + 479130793.

It is an arithmetic number, because the mean of its divisors is an integer number (5749569252).

Almost surely, 2^22040015443 is an apocalyptic number.

22040015443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22040015443 is a deficient number, since it is larger than the sum of its proper divisors (958261565).

22040015443 is an equidigital number, since it uses as much as digits as its factorization.

22040015443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958261564.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 22040015443 its reverse (34451004022), we get a palindrome (56491019465).

The spelling of 22040015443 in words is "twenty-two billion, forty million, fifteen thousand, four hundred forty-three".