1042342243 has 4 divisors (see below), whose sum is σ = 1046051928. Its totient is φ = 1038632560.

The previous prime is 1042342211. The next prime is 1042342247. The reversal of 1042342243 is 3422432401.

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 1042342243 - 2⁵ = 1042342211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042342247) 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, 1854421 + ... + 1854982.

It is an arithmetic number, because the mean of its divisors is an integer number (261512982).

Almost surely, 2^1042342243 is an apocalyptic number.

1042342243 is a deficient number, since it is larger than the sum of its proper divisors (3709685).

1042342243 is an equidigital number, since it uses as much as digits as its factorization.

1042342243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709684.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1042342243 is about 32285.3255055606. The cubic root of 1042342243 is about 1013.9194314618.

Adding to 1042342243 its reverse (3422432401), we get a palindrome (4464774644).

The spelling of 1042342243 in words is "one billion, forty-two million, three hundred forty-two thousand, two hundred forty-three".