431123442 has 8 divisors (see below), whose sum is σ = 862246896. Its totient is φ = 143707812.

The previous prime is 431123419. The next prime is 431123507. The reversal of 431123442 is 244321134.

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

431123442 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 35926948 + ... + 35926959.

It is an arithmetic number, because the mean of its divisors is an integer number (107780862).

Almost surely, 2^431123442 is an apocalyptic number.

431123442 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.

431123442 is a wasteful number, since it uses less digits than its factorization.

431123442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71853912.

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

The square root of 431123442 is about 20763.5122751427. The cubic root of 431123442 is about 755.4409902690.

Adding to 431123442 its reverse (244321134), we get a palindrome (675444576).

The spelling of 431123442 in words is "four hundred thirty-one million, one hundred twenty-three thousand, four hundred forty-two".