22040043 has 8 divisors (see below), whose sum is σ = 29672448. Its totient is φ = 14550504.

The previous prime is 22040023. The next prime is 22040071. The reversal of 22040043 is 34004022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22040043 - 2¹⁰ = 22039019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22040023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35355 + ... + 35972.

It is an arithmetic number, because the mean of its divisors is an integer number (3709056).

Almost surely, 2^22040043 is an apocalyptic number.

22040043 is a deficient number, since it is larger than the sum of its proper divisors (7632405).

22040043 is a wasteful number, since it uses less digits than its factorization.

22040043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71433.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22040043 is about 4694.6824173739. The cubic root of 22040043 is about 280.3738331494.

Adding to 22040043 its reverse (34004022), we get a palindrome (56044065).

The spelling of 22040043 in words is "twenty-two million, forty thousand, forty-three".