406066402 has 16 divisors (see below), whose sum is σ = 696585600. Its totient is φ = 173910528.

The previous prime is 406066387. The next prime is 406066421. The reversal of 406066402 is 204660604.

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 7 ways as a sum of consecutive naturals, for example, 13474 + ... + 31522.

It is an arithmetic number, because the mean of its divisors is an integer number (43536600).

Almost surely, 2^406066402 is an apocalyptic number.

406066402 is a deficient number, since it is larger than the sum of its proper divisors (290519198).

406066402 is a wasteful number, since it uses less digits than its factorization.

406066402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19665.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 406066402 is about 20151.0893502064. The cubic root of 406066402 is about 740.5124293458.

The spelling of 406066402 in words is "four hundred six million, sixty-six thousand, four hundred two".