431423200144 has 40 divisors (see below), whose sum is σ = 869640593408. Its totient is φ = 207109405440.

The previous prime is 431423200141. The next prime is 431423200183. The reversal of 431423200144 is 441002324134.

It is a super-2 number, since 2×431423200144² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431423200141) by changing a digit.

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, 3361437 + ... + 3487420.

Almost surely, 2^431423200144 is an apocalyptic number.

It is an amenable number.

431423200144 is an abundant number, since it is smaller than the sum of its proper divisors (438217393264).

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

431423200144 is a wasteful number, since it uses less digits than its factorization.

431423200144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6849023 (or 6849017 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 431423200144 its reverse (441002324134), we get a palindrome (872425524278).

The spelling of 431423200144 in words is "four hundred thirty-one billion, four hundred twenty-three million, two hundred thousand, one hundred forty-four".