406229018 has 24 divisors (see below), whose sum is σ = 661997376. Its totient is φ = 186872400.

The previous prime is 406228993. The next prime is 406229023. The reversal of 406229018 is 810922604.

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 11 ways as a sum of consecutive naturals, for example, 110063 + ... + 113693.

It is an arithmetic number, because the mean of its divisors is an integer number (27583224).

Almost surely, 2^406229018 is an apocalyptic number.

406229018 is a deficient number, since it is larger than the sum of its proper divisors (255768358).

406229018 is a wasteful number, since it uses less digits than its factorization.

406229018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 406229018 is about 20155.1238646653. The cubic root of 406229018 is about 740.6112662992.

The spelling of 406229018 in words is "four hundred six million, two hundred twenty-nine thousand, eighteen".