431068816 has 10 divisors (see below), whose sum is σ = 835195862. Its totient is φ = 215534400.

The previous prime is 431068801. The next prime is 431068817. The reversal of 431068816 is 618860134.

It can be written as a sum of positive squares in only one way, i.e., 416323216 + 14745600 = 20404^2 + 3840^2 .

It is not an unprimeable number, because it can be changed into a prime (431068817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13470885 + ... + 13470916.

Almost surely, 2^431068816 is an apocalyptic number.

It is an amenable number.

431068816 is a deficient number, since it is larger than the sum of its proper divisors (404127046).

431068816 is a wasteful number, since it uses less digits than its factorization.

431068816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941809 (or 26941803 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 431068816 is about 20762.1968009168. The cubic root of 431068816 is about 755.4090825765.

The spelling of 431068816 in words is "four hundred thirty-one million, sixty-eight thousand, eight hundred sixteen".