431321442 has 8 divisors (see below), whose sum is σ = 862642896. Its totient is φ = 143773812.

The previous prime is 431321327. The next prime is 431321459. The reversal of 431321442 is 244123134.

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

431321442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35943448 + ... + 35943459.

It is an arithmetic number, because the mean of its divisors is an integer number (107830362).

Almost surely, 2^431321442 is an apocalyptic number.

431321442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

431321442 is a wasteful number, since it uses less digits than its factorization.

431321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71886912.

The product of its digits is 2304, while the sum is 24.

The square root of 431321442 is about 20768.2797072844. The cubic root of 431321442 is about 755.5566218250.

Adding to 431321442 its reverse (244123134), we get a palindrome (675444576).

The spelling of 431321442 in words is "four hundred thirty-one million, three hundred twenty-one thousand, four hundred forty-two".