42434231 has 8 divisors (see below), whose sum is σ = 48554784. Its totient is φ = 36328320.

The previous prime is 42434219. The next prime is 42434233. The reversal of 42434231 is 13243424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42434231 - 2¹⁴ = 42417847 is a prime.

It is a super-2 number, since 2×42434231² = 3601327921122722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42434197 and 42434206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42434233) 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 7 ways as a sum of consecutive naturals, for example, 3491 + ... + 9851.

It is an arithmetic number, because the mean of its divisors is an integer number (6069348).

Almost surely, 2^42434231 is an apocalyptic number.

42434231 is a deficient number, since it is larger than the sum of its proper divisors (6120553).

42434231 is an equidigital number, since it uses as much as digits as its factorization.

42434231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321.

The product of its digits is 2304, while the sum is 23.

The square root of 42434231 is about 6514.1562001536. The cubic root of 42434231 is about 348.7964949594.

Adding to 42434231 its reverse (13243424), we get a palindrome (55677655).

It can be divided in two parts, 4243423 and 1, that added together give a palindrome (4243424).

The spelling of 42434231 in words is "forty-two million, four hundred thirty-four thousand, two hundred thirty-one".