431042 has 4 divisors (see below), whose sum is σ = 646566. Its totient is φ = 215520.

The previous prime is 431029. The next prime is 431047. The reversal of 431042 is 240134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240134 = 2 ⋅120067.

It can be written as a sum of positive squares in only one way, i.e., 229441 + 201601 = 479^2 + 449^2 .

It is not an unprimeable number, because it can be changed into a prime (431047) by changing a digit.

431042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107759 + ... + 107762.

2⁴³¹⁰⁴² is an apocalyptic number.

431042 is a deficient number, since it is larger than the sum of its proper divisors (215524).

431042 is a wasteful number, since it uses less digits than its factorization.

431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215523.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 431042 is about 656.5378892341. The cubic root of 431042 is about 75.5393418047.

Adding to 431042 its sum of digits (14), we get a triangular number (431056 = T₉₂₈).

Adding to 431042 its reverse (240134), we get a palindrome (671176).

The spelling of 431042 in words is "four hundred thirty-one thousand, forty-two".