431725284 has 27 divisors (see below), whose sum is σ = 1091620803. Its totient is φ = 143866872.

The previous prime is 431725279. The next prime is 431725297. The reversal of 431725284 is 482527134.

It is a happy number.

The square root of 431725284 is 20778.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 122937 + ... + 126399.

Almost surely, 2^431725284 is an apocalyptic number.

431725284 is the 20778-th square number.

It is an amenable number.

431725284 is an abundant number, since it is smaller than the sum of its proper divisors (659895519).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431725284 is an equidigital number, since it uses as much as digits as its factorization.

431725284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6936 (or 3468 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The cubic root of 431725284 is about 755.7923549994.

Multiplying 431725284 by its sum of digits (36), we get a square (15542110224 = 124668²).

431725284 divided by its sum of digits (36) gives a square (11992369 = 3463²).

The spelling of 431725284 in words is "four hundred thirty-one million, seven hundred twenty-five thousand, two hundred eighty-four".