406187068 has 18 divisors (see below), whose sum is σ = 826881216. Its totient is φ = 174080088.

The previous prime is 406187063. The next prime is 406187099. The reversal of 406187068 is 860781604.

It is a self number, because there is not a number n which added to its sum of digits gives 406187068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406187063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1035996 + ... + 1036387.

Almost surely, 2^406187068 is an apocalyptic number.

It is an amenable number.

406187068 is an abundant number, since it is smaller than the sum of its proper divisors (420694148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406187068 is a wasteful number, since it uses less digits than its factorization.

406187068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072401 (or 2072392 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 406187068 is about 20154.0831594990. The cubic root of 406187068 is about 740.5857718854.

The spelling of 406187068 in words is "four hundred six million, one hundred eighty-seven thousand, sixty-eight".