42032431 has 8 divisors (see below), whose sum is σ = 50125824. Its totient is φ = 34461240.

The previous prime is 42032411. The next prime is 42032437. The reversal of 42032431 is 13423024.

42032431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42032431 - 2⁹ = 42031919 is a prime.

It is a super-2 number, since 2×42032431² = 3533450511539522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42032399 and 42032408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42032437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130375 + ... + 130696.

It is an arithmetic number, because the mean of its divisors is an integer number (6265728).

Almost surely, 2^42032431 is an apocalyptic number.

42032431 is a deficient number, since it is larger than the sum of its proper divisors (8093393).

42032431 is a wasteful number, since it uses less digits than its factorization.

42032431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261101.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42032431 is about 6483.2423215549. The cubic root of 42032431 is about 347.6921105338.

Adding to 42032431 its reverse (13423024), we get a palindrome (55455455).

The spelling of 42032431 in words is "forty-two million, thirty-two thousand, four hundred thirty-one".