406666602 has 64 divisors (see below), whose sum is σ = 920056320. Its totient is φ = 133128000.

The previous prime is 406666597. The next prime is 406666613. The reversal of 406666602 is 206666604.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943327 + ... + 943757.

It is an arithmetic number, because the mean of its divisors is an integer number (14375880).

Almost surely, 2^406666602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406666602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460028160).

406666602 is an abundant number, since it is smaller than the sum of its proper divisors (513389718).

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

406666602 is a wasteful number, since it uses less digits than its factorization.

406666602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 710 counting only the distinct ones).

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

The square root of 406666602 is about 20165.9763463116. The cubic root of 406666602 is about 740.8770961070.

The spelling of 406666602 in words is "four hundred six million, six hundred sixty-six thousand, six hundred two".