431143016 has 8 divisors (see below), whose sum is σ = 808393170. Its totient is φ = 215571504.

The previous prime is 431143007. The next prime is 431143033. The reversal of 431143016 is 610341134.

It can be written as a sum of positive squares in only one way, i.e., 362750116 + 68392900 = 19046^2 + 8270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 431142982 and 431143000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26946431 + ... + 26946446.

Almost surely, 2^431143016 is an apocalyptic number.

It is an amenable number.

431143016 is a deficient number, since it is larger than the sum of its proper divisors (377250154).

431143016 is a wasteful number, since it uses less digits than its factorization.

431143016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53892883 (or 53892879 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 431143016 is about 20763.9836254992. The cubic root of 431143016 is about 755.4524230179.

The spelling of 431143016 in words is "four hundred thirty-one million, one hundred forty-three thousand, sixteen".