431320422 has 64 divisors (see below), whose sum is σ = 992194560. Its totient is φ = 123984000.

The previous prime is 431320397. The next prime is 431320441. The reversal of 431320422 is 224023134.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 67047 + ... + 73197.

It is an arithmetic number, because the mean of its divisors is an integer number (15503040).

Almost surely, 2^431320422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431320422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496097280).

431320422 is an abundant number, since it is smaller than the sum of its proper divisors (560874138).

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

431320422 is a wasteful number, since it uses less digits than its factorization.

431320422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 431320422 is about 20768.2551505898. The cubic root of 431320422 is about 755.5560262380.

Adding to 431320422 its reverse (224023134), we get a palindrome (655343556).

The spelling of 431320422 in words is "four hundred thirty-one million, three hundred twenty thousand, four hundred twenty-two".