432257 has 4 divisors (see below), whose sum is σ = 494016. Its totient is φ = 370500.

The previous prime is 432251. The next prime is 432277. The reversal of 432257 is 752234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 432257 - 2⁴ = 432241 is a prime.

It is a super-2 number, since 2×432257² = 373692228098, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁹ + 3⁹ + 2³ + 2¹⁵ + 5 + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 432257.

It is not an unprimeable number, because it can be changed into a prime (432251) by changing a digit.

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, 30869 + ... + 30882.

It is an arithmetic number, because the mean of its divisors is an integer number (123504).

2⁴³²²⁵⁷ is an apocalyptic number.

It is an amenable number.

432257 is a deficient number, since it is larger than the sum of its proper divisors (61759).

432257 is an equidigital number, since it uses as much as digits as its factorization.

432257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61758.

The product of its digits is 1680, while the sum is 23.

The square root of 432257 is about 657.4625464618. The cubic root of 432257 is about 75.6102507493.

Subtracting from 432257 its sum of digits (23), we obtain a palindrome (432234).

The spelling of 432257 in words is "four hundred thirty-two thousand, two hundred fifty-seven".