406662606 has 80 divisors (see below), whose sum is σ = 1052421216. Its totient is φ = 114960384.

The previous prime is 406662601. The next prime is 406662617. The reversal of 406662606 is 606266604.

It is a super-2 number, since 2×406662606² = 330748950237422472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406662601) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 108150 + ... + 111846.

Almost surely, 2^406662606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406662606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526210608).

406662606 is an abundant number, since it is smaller than the sum of its proper divisors (645758610).

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

406662606 is a wasteful number, since it uses less digits than its factorization.

406662606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815 (or 3806 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 406662606 is about 20165.8772682966. The cubic root of 406662606 is about 740.8746694226.

The spelling of 406662606 in words is "four hundred six million, six hundred sixty-two thousand, six hundred six".