432431 has 4 divisors (see below), whose sum is σ = 435864. Its totient is φ = 429000.

The previous prime is 432413. The next prime is 432433. The reversal of 432431 is 134234.

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-432431 is a prime.

It is a super-2 number, since 2×432431² = 373993139522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520 + ... + 1781.

It is an arithmetic number, because the mean of its divisors is an integer number (108966).

2⁴³²⁴³¹ is an apocalyptic number.

432431 is a deficient number, since it is larger than the sum of its proper divisors (3433).

432431 is a wasteful number, since it uses less digits than its factorization.

432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its digits is 288, while the sum is 17.

The square root of 432431 is about 657.5948600772. The cubic root of 432431 is about 75.6203947290.

Adding to 432431 its reverse (134234), we get a palindrome (566665).

The spelling of 432431 in words is "four hundred thirty-two thousand, four hundred thirty-one".