431886 has 48 divisors (see below), whose sum is σ = 1091664. Its totient is φ = 112896.

The previous prime is 431881. The next prime is 431887. The reversal of 431886 is 688134.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431881) by changing a digit.

431886 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 in 23 ways as a sum of consecutive naturals, for example, 3766 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (22743).

2⁴³¹⁸⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545832).

431886 is an abundant number, since it is smaller than the sum of its proper divisors (659778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431886 is a wasteful number, since it uses less digits than its factorization.

431886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 138 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 431886 is about 657.1803405459. The cubic root of 431886 is about 75.5886128254.

The spelling of 431886 in words is "four hundred thirty-one thousand, eight hundred eighty-six".