405016006 has 4 divisors (see below), whose sum is σ = 607524012. Its totient is φ = 202508002.

The previous prime is 405015997. The next prime is 405016019. The reversal of 405016006 is 600610504.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 101254000 + ... + 101254003.

It is an arithmetic number, because the mean of its divisors is an integer number (151881003).

Almost surely, 2^405016006 is an apocalyptic number.

405016006 is a deficient number, since it is larger than the sum of its proper divisors (202508006).

405016006 is a wasteful number, since it uses less digits than its factorization.

405016006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202508005.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 405016006 is about 20125.0094658363. The cubic root of 405016006 is about 739.8733688844.

The spelling of 405016006 in words is "four hundred five million, sixteen thousand, six".