432243442 has 4 divisors (see below), whose sum is σ = 648365166. Its totient is φ = 216121720.

The previous prime is 432243431. The next prime is 432243481. The reversal of 432243442 is 244342234.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244342234 = 2 ⋅122171117.

It can be written as a sum of positive squares in only one way, i.e., 298632961 + 133610481 = 17281^2 + 11559^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 432243442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108060859 + ... + 108060862.

Almost surely, 2^432243442 is an apocalyptic number.

432243442 is a deficient number, since it is larger than the sum of its proper divisors (216121724).

432243442 is a wasteful number, since it uses less digits than its factorization.

432243442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216121723.

The product of its digits is 18432, while the sum is 28.

The square root of 432243442 is about 20790.4651703611. The cubic root of 432243442 is about 756.0946022073.

Adding to 432243442 its reverse (244342234), we get a palindrome (676585676).

The spelling of 432243442 in words is "four hundred thirty-two million, two hundred forty-three thousand, four hundred forty-two".