432431144 has 8 divisors (see below), whose sum is σ = 810808410. Its totient is φ = 216215568.

The previous prime is 432431143. The next prime is 432431171. The reversal of 432431144 is 441134234.

It can be written as a sum of positive squares in only one way, i.e., 419020900 + 13410244 = 20470^2 + 3662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×432431144² = 373993388602297472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (432431143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27026939 + ... + 27026954.

Almost surely, 2^432431144 is an apocalyptic number.

It is an amenable number.

432431144 is a deficient number, since it is larger than the sum of its proper divisors (378377266).

432431144 is a wasteful number, since it uses less digits than its factorization.

432431144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54053899 (or 54053895 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 432431144 is about 20794.9788170125. The cubic root of 432431144 is about 756.2040312290.

Adding to 432431144 its reverse (441134234), we get a palindrome (873565378).

The spelling of 432431144 in words is "four hundred thirty-two million, four hundred thirty-one thousand, one hundred forty-four".