40142414243 has 4 divisors (see below), whose sum is σ = 40143189240. Its totient is φ = 40141639248.

The previous prime is 40142414209. The next prime is 40142414269. The reversal of 40142414243 is 34241424104.

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 40142414243 - 2¹⁴ = 40142397859 is a prime.

It is a super-2 number, since 2×40142414243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40142414203) 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, 303773 + ... + 415406.

It is an arithmetic number, because the mean of its divisors is an integer number (10035797310).

Almost surely, 2^40142414243 is an apocalyptic number.

40142414243 is a deficient number, since it is larger than the sum of its proper divisors (774997).

40142414243 is an equidigital number, since it uses as much as digits as its factorization.

40142414243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774996.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 40142414243 its reverse (34241424104), we get a palindrome (74383838347).

The spelling of 40142414243 in words is "forty billion, one hundred forty-two million, four hundred fourteen thousand, two hundred forty-three".