432240145 has 4 divisors (see below), whose sum is σ = 518688180. Its totient is φ = 345792112.

The previous prime is 432240143. The next prime is 432240169. The reversal of 432240145 is 541042234.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51365889 + 380874256 = 7167^2 + 19516^2 .

It is a cyclic number.

It is not a de Polignac number, because 432240145 - 2¹ = 432240143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (432240143) 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, 43224010 + ... + 43224019.

It is an arithmetic number, because the mean of its divisors is an integer number (129672045).

Almost surely, 2^432240145 is an apocalyptic number.

It is an amenable number.

432240145 is a deficient number, since it is larger than the sum of its proper divisors (86448035).

432240145 is an equidigital number, since it uses as much as digits as its factorization.

432240145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86448034.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 432240145 is about 20790.3858790548. The cubic root of 432240145 is about 756.0926797951.

Adding to 432240145 its reverse (541042234), we get a palindrome (973282379).

The spelling of 432240145 in words is "four hundred thirty-two million, two hundred forty thousand, one hundred forty-five".