342742443 has 4 divisors (see below), whose sum is σ = 456989928. Its totient is φ = 228494960.

The previous prime is 342742363. The next prime is 342742451. The reversal of 342742443 is 344247243.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342742443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342742483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57123738 + ... + 57123743.

It is an arithmetic number, because the mean of its divisors is an integer number (114247482).

Almost surely, 2^342742443 is an apocalyptic number.

342742443 is a deficient number, since it is larger than the sum of its proper divisors (114247485).

342742443 is a wasteful number, since it uses less digits than its factorization.

342742443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114247484.

The product of its digits is 64512, while the sum is 33.

The square root of 342742443 is about 18513.3044862337. The cubic root of 342742443 is about 699.8247472837.

Adding to 342742443 its reverse (344247243), we get a palindrome (686989686).

The spelling of 342742443 in words is "three hundred forty-two million, seven hundred forty-two thousand, four hundred forty-three".