431123444 has 6 divisors (see below), whose sum is σ = 754466034. Its totient is φ = 215561720.

The previous prime is 431123419. The next prime is 431123507. The reversal of 431123444 is 444321134.

It can be written as a sum of positive squares in only one way, i.e., 282576100 + 148547344 = 16810^2 + 12188^2 .

It is a super-2 number, since 2×431123444² = 371734847932842272, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 53890427 + ... + 53890434.

It is an arithmetic number, because the mean of its divisors is an integer number (125744339).

Almost surely, 2^431123444 is an apocalyptic number.

It is an amenable number.

431123444 is a deficient number, since it is larger than the sum of its proper divisors (323342590).

431123444 is a wasteful number, since it uses less digits than its factorization.

431123444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107780865 (or 107780863 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 431123444 is about 20763.5123233041. The cubic root of 431123444 is about 755.4409914371.

Adding to 431123444 its reverse (444321134), we get a palindrome (875444578).

The spelling of 431123444 in words is "four hundred thirty-one million, one hundred twenty-three thousand, four hundred forty-four".