431478904328 has 64 divisors (see below), whose sum is σ = 828508262400. Its totient is φ = 210614218560.

The previous prime is 431478904327. The next prime is 431478904331. The reversal of 431478904328 is 823409874134.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 431478904328.

It is not an unprimeable number, because it can be changed into a prime (431478904327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32753183 + ... + 32766353.

It is an arithmetic number, because the mean of its divisors is an integer number (12945441600).

Almost surely, 2^431478904328 is an apocalyptic number.

It is an amenable number.

431478904328 is a deficient number, since it is larger than the sum of its proper divisors (397029358072).

431478904328 is a wasteful number, since it uses less digits than its factorization.

431478904328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13842 (or 13838 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 431478904328 in words is "four hundred thirty-one billion, four hundred seventy-eight million, nine hundred four thousand, three hundred twenty-eight".