42434255 has 4 divisors (see below), whose sum is σ = 50921112. Its totient is φ = 33947400.

The previous prime is 42434237. The next prime is 42434269. The reversal of 42434255 is 55243424.

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

It is not a de Polignac number, because 42434255 - 2¹⁴ = 42417871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4243421 + ... + 4243430.

It is an arithmetic number, because the mean of its divisors is an integer number (12730278).

Almost surely, 2^42434255 is an apocalyptic number.

42434255 is a deficient number, since it is larger than the sum of its proper divisors (8486857).

42434255 is an equidigital number, since it uses as much as digits as its factorization.

42434255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486856.

The product of its digits is 19200, while the sum is 29.

The square root of 42434255 is about 6514.1580422953. The cubic root of 42434255 is about 348.7965607170.

Adding to 42434255 its reverse (55243424), we get a palindrome (97677679).

The spelling of 42434255 in words is "forty-two million, four hundred thirty-four thousand, two hundred fifty-five".