431642 has 16 divisors (see below), whose sum is σ = 702240. Its totient is φ = 198288.

The previous prime is 431621. The next prime is 431657. The reversal of 431642 is 246134.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253 + ... + 1559.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2⁴³¹⁶⁴² is an apocalyptic number.

431642 is a deficient number, since it is larger than the sum of its proper divisors (270598).

431642 is a wasteful number, since it uses less digits than its factorization.

431642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its digits is 576, while the sum is 20.

The square root of 431642 is about 656.9946727333. The cubic root of 431642 is about 75.5743751979.

Adding to 431642 its reverse (246134), we get a palindrome (677776).

The spelling of 431642 in words is "four hundred thirty-one thousand, six hundred forty-two".