431243144 has 16 divisors (see below), whose sum is σ = 809680320. Its totient is φ = 215328400.

The previous prime is 431243129. The next prime is 431243203. The reversal of 431243144 is 441342134.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30332 + ... + 42219.

It is an arithmetic number, because the mean of its divisors is an integer number (50605020).

Almost surely, 2^431243144 is an apocalyptic number.

It is an amenable number.

431243144 is a deficient number, since it is larger than the sum of its proper divisors (378437176).

431243144 is a wasteful number, since it uses less digits than its factorization.

431243144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73300 (or 73296 counting only the distinct ones).

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

The square root of 431243144 is about 20766.3945835573. The cubic root of 431243144 is about 755.5109001995.

Adding to 431243144 its reverse (441342134), we get a palindrome (872585278).

The spelling of 431243144 in words is "four hundred thirty-one million, two hundred forty-three thousand, one hundred forty-four".