40122442043 has 4 divisors (see below), whose sum is σ = 40234204080. Its totient is φ = 40010680008.

The previous prime is 40122442039. The next prime is 40122442051. The reversal of 40122442043 is 34024422104.

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 40122442043 - 2² = 40122442039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40122442643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55880480 + ... + 55881197.

It is an arithmetic number, because the mean of its divisors is an integer number (10058551020).

Almost surely, 2^40122442043 is an apocalyptic number.

40122442043 is a deficient number, since it is larger than the sum of its proper divisors (111762037).

40122442043 is a wasteful number, since it uses less digits than its factorization.

40122442043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111762036.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40122442043 its reverse (34024422104), we get a palindrome (74146864147).

The spelling of 40122442043 in words is "forty billion, one hundred twenty-two million, four hundred forty-two thousand, forty-three".