431320415 has 8 divisors (see below), whose sum is σ = 518974368. Its totient is φ = 344129760.

The previous prime is 431320397. The next prime is 431320441. The reversal of 431320415 is 514023134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431320415 - 2²⁰ = 430271839 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 113771 + ... + 117500.

It is an arithmetic number, because the mean of its divisors is an integer number (64871796).

Almost surely, 2^431320415 is an apocalyptic number.

431320415 is a deficient number, since it is larger than the sum of its proper divisors (87653953).

431320415 is a wasteful number, since it uses less digits than its factorization.

431320415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231649.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 431320415 is about 20768.2549820634. The cubic root of 431320415 is about 755.5560221506.

Adding to 431320415 its reverse (514023134), we get a palindrome (945343549).

The spelling of 431320415 in words is "four hundred thirty-one million, three hundred twenty thousand, four hundred fifteen".