406199716 has 24 divisors (see below), whose sum is σ = 768730424. Its totient is φ = 186693120.

The previous prime is 406199701. The next prime is 406199737. The reversal of 406199716 is 617991604.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118897216 + 287302500 = 10904^2 + 16950^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3675 + ... + 28738.

Almost surely, 2^406199716 is an apocalyptic number.

It is an amenable number.

406199716 is a deficient number, since it is larger than the sum of its proper divisors (362530708).

406199716 is a wasteful number, since it uses less digits than its factorization.

406199716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32671 (or 32669 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 406199716 is about 20154.3969396259. The cubic root of 406199716 is about 740.5934586816.

The spelling of 406199716 in words is "four hundred six million, one hundred ninety-nine thousand, seven hundred sixteen".