431488 has 16 divisors (see below), whose sum is σ = 859860. Its totient is φ = 215680.

The previous prime is 431479. The next prime is 431513. The reversal of 431488 is 884134.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558 + ... + 1813.

2⁴³¹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

431488 is a deficient number, since it is larger than the sum of its proper divisors (428372).

431488 is an equidigital number, since it uses as much as digits as its factorization.

431488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385 (or 3373 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 431488 is about 656.8774619364. The cubic root of 431488 is about 75.5653863922.

It can be divided in two parts, 431 and 488, that added together give a palindrome (919).

The spelling of 431488 in words is "four hundred thirty-one thousand, four hundred eighty-eight".