431284446 has 16 divisors (see below), whose sum is σ = 958410000. Its totient is φ = 143761464.

The previous prime is 431284429. The next prime is 431284481. The reversal of 431284446 is 644482134.

It is a self number, because there is not a number n which added to its sum of digits gives 431284446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3993321 + ... + 3993428.

It is an arithmetic number, because the mean of its divisors is an integer number (59900625).

Almost surely, 2^431284446 is an apocalyptic number.

431284446 is an abundant number, since it is smaller than the sum of its proper divisors (527125554).

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

431284446 is a wasteful number, since it uses less digits than its factorization.

431284446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986760 (or 7986754 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 431284446 is about 20767.3890029536. The cubic root of 431284446 is about 755.5350189327.

It can be divided in two parts, 43128 and 4446, that added together give a palindrome (47574).

The spelling of 431284446 in words is "four hundred thirty-one million, two hundred eighty-four thousand, four hundred forty-six".