672432 has 20 divisors (see below), whose sum is σ = 1737240. Its totient is φ = 224128.

The previous prime is 672379. The next prime is 672439. The reversal of 672432 is 234276.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 6 + 7⁵ + 4² + 2¹⁷ + 3⁵ + 2¹⁹ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 672432.

It is not an unprimeable number, because it can be changed into a prime (672439) by changing a digit.

672432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6957 + ... + 7052.

It is an arithmetic number, because the mean of its divisors is an integer number (86862).

2⁶⁷²⁴³² is an apocalyptic number.

It is an amenable number.

672432 is an abundant number, since it is smaller than the sum of its proper divisors (1064808).

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

672432 is a wasteful number, since it uses less digits than its factorization.

672432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14020 (or 14014 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 672432 is about 820.0195119630. The cubic root of 672432 is about 87.6091481449.

The spelling of 672432 in words is "six hundred seventy-two thousand, four hundred thirty-two".