431243332 has 12 divisors (see below), whose sum is σ = 812727916. Its totient is φ = 199035360.

The previous prime is 431243327. The next prime is 431243341. The reversal of 431243332 is 233342134.

It can be written as a sum of positive squares in 2 ways, for example, as 136983616 + 294259716 = 11704^2 + 17154^2 .

It is a super-2 number, since 2×431243332² = 371941622788924448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431243297 and 431243306.

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, 4146519 + ... + 4146622.

Almost surely, 2^431243332 is an apocalyptic number.

It is an amenable number.

431243332 is a deficient number, since it is larger than the sum of its proper divisors (381484584).

431243332 is a wasteful number, since it uses less digits than its factorization.

431243332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8293158 (or 8293156 counting only the distinct ones).

The product of its digits is 5184, while the sum is 25.

The square root of 431243332 is about 20766.3991101009. The cubic root of 431243332 is about 755.5110099875.

Adding to 431243332 its reverse (233342134), we get a palindrome (664585466).

The spelling of 431243332 in words is "four hundred thirty-one million, two hundred forty-three thousand, three hundred thirty-two".