409100166 has 16 divisors (see below), whose sum is σ = 909111600. Its totient is φ = 136366704.

The previous prime is 409100123. The next prime is 409100177. The reversal of 409100166 is 661001904.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3787911 + ... + 3788018.

It is an arithmetic number, because the mean of its divisors is an integer number (56819475).

Almost surely, 2^409100166 is an apocalyptic number.

409100166 is an abundant number, since it is smaller than the sum of its proper divisors (500011434).

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

409100166 is a wasteful number, since it uses less digits than its factorization.

409100166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575940 (or 7575934 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 409100166 is about 20226.2247095201. The cubic root of 409100166 is about 742.3520039692.

The spelling of 409100166 in words is "four hundred nine million, one hundred thousand, one hundred sixty-six".