406728716 has 12 divisors (see below), whose sum is σ = 731012688. Its totient is φ = 197867952.

The previous prime is 406728703. The next prime is 406728743. The reversal of 406728716 is 617827604.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1373936 + ... + 1374231.

It is an arithmetic number, because the mean of its divisors is an integer number (60917724).

Almost surely, 2^406728716 is an apocalyptic number.

It is an amenable number.

406728716 is a deficient number, since it is larger than the sum of its proper divisors (324283972).

406728716 is a wasteful number, since it uses less digits than its factorization.

406728716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748208 (or 2748206 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 406728716 is about 20167.5163567555. The cubic root of 406728716 is about 740.9148145533.

The spelling of 406728716 in words is "four hundred six million, seven hundred twenty-eight thousand, seven hundred sixteen".