406011806 has 4 divisors (see below), whose sum is σ = 609017712. Its totient is φ = 203005902.

The previous prime is 406011769. The next prime is 406011839. The reversal of 406011806 is 608110604.

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

It is a super-2 number, since 2×406011806² = 329691173222763272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101502950 + ... + 101502953.

It is an arithmetic number, because the mean of its divisors is an integer number (152254428).

Almost surely, 2^406011806 is an apocalyptic number.

406011806 is a deficient number, since it is larger than the sum of its proper divisors (203005906).

406011806 is a wasteful number, since it uses less digits than its factorization.

406011806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203005905.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 406011806 is about 20149.7346384512. The cubic root of 406011806 is about 740.4792403334.

The spelling of 406011806 in words is "four hundred six million, eleven thousand, eight hundred six".