431324478 has 48 divisors (see below), whose sum is σ = 1008427056. Its totient is φ = 132451200.

The previous prime is 431324461. The next prime is 431324501. The reversal of 431324478 is 874423134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139101 + ... + 142167.

It is an arithmetic number, because the mean of its divisors is an integer number (21008897).

Almost surely, 2^431324478 is an apocalyptic number.

431324478 is an abundant number, since it is smaller than the sum of its proper divisors (577102578).

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

431324478 is a wasteful number, since it uses less digits than its factorization.

431324478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689 (or 3686 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 431324478 is about 20768.3527993917. The cubic root of 431324478 is about 755.5583945667.

The spelling of 431324478 in words is "four hundred thirty-one million, three hundred twenty-four thousand, four hundred seventy-eight".