319448431 has 4 divisors (see below), whose sum is σ = 320413864. Its totient is φ = 318483000.

The previous prime is 319448407. The next prime is 319448443. The reversal of 319448431 is 134844913.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 319448431 - 2¹¹ = 319446383 is a prime.

It is a super-2 number, since 2×319448431² = 204094600136723522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319448461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482220 + ... + 482881.

It is an arithmetic number, because the mean of its divisors is an integer number (80103466).

Almost surely, 2^319448431 is an apocalyptic number.

319448431 is a deficient number, since it is larger than the sum of its proper divisors (965433).

319448431 is an equidigital number, since it uses as much as digits as its factorization.

319448431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965432.

The product of its digits is 41472, while the sum is 37.

The square root of 319448431 is about 17873.1203487248. The cubic root of 319448431 is about 683.5971652783.

The spelling of 319448431 in words is "three hundred nineteen million, four hundred forty-eight thousand, four hundred thirty-one".