432440023 has 4 divisors (see below), whose sum is σ = 433425520. Its totient is φ = 431454528.

The previous prime is 432440017. The next prime is 432440027. The reversal of 432440023 is 320044234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320044234 = 2 ⋅160022117.

It is a cyclic number.

It is not a de Polignac number, because 432440023 - 2¹⁷ = 432308951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432439976 and 432440003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432440027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492090 + ... + 492967.

It is an arithmetic number, because the mean of its divisors is an integer number (108356380).

Almost surely, 2^432440023 is an apocalyptic number.

432440023 is a deficient number, since it is larger than the sum of its proper divisors (985497).

432440023 is an equidigital number, since it uses as much as digits as its factorization.

432440023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985496.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 432440023 is about 20795.1923049536. The cubic root of 432440023 is about 756.2092068427.

Adding to 432440023 its reverse (320044234), we get a palindrome (752484257).

The spelling of 432440023 in words is "four hundred thirty-two million, four hundred forty thousand, twenty-three".