432642 has 16 divisors (see below), whose sum is σ = 988992. Its totient is φ = 123600.

The previous prime is 432637. The next prime is 432659. The reversal of 432642 is 246234.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

432642 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 7 ways as a sum of consecutive naturals, for example, 5109 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (61812).

2⁴³²⁶⁴² is an apocalyptic number.

432642 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

432642 is an abundant number, since it is smaller than the sum of its proper divisors (556350).

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

432642 is a wasteful number, since it uses less digits than its factorization.

432642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313.

The product of its digits is 1152, while the sum is 21.

The square root of 432642 is about 657.7552736391. The cubic root of 432642 is about 75.6326921120.

432642 divided by its sum of digits (21) gives a palindrome (20602).

Adding to 432642 its reverse (246234), we get a palindrome (678876).

The spelling of 432642 in words is "four hundred thirty-two thousand, six hundred forty-two".