432840 has 32 divisors (see below), whose sum is σ = 1298880. Its totient is φ = 115392.

The previous prime is 432833. The next prime is 432847. The reversal of 432840 is 48234.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (432833) and next prime (432847).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 432840.

It is not an unprimeable number, because it can be changed into a prime (432847) by changing a digit.

432840 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 7 ways as a sum of consecutive naturals, for example, 1684 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (40590).

2⁴³²⁸⁴⁰ is an apocalyptic number.

432840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

432840 is an abundant number, since it is smaller than the sum of its proper divisors (866040).

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

432840 is a wasteful number, since it uses less digits than its factorization.

432840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 432840 is about 657.9057683286. The cubic root of 432840 is about 75.6442282004.

The spelling of 432840 in words is "four hundred thirty-two thousand, eight hundred forty".