406666460 has 24 divisors (see below), whose sum is σ = 854658000. Its totient is φ = 162541184.

The previous prime is 406666459. The next prime is 406666493. The reversal of 406666460 is 64666604.

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, 21416 + ... + 35664.

It is an arithmetic number, because the mean of its divisors is an integer number (35610750).

Almost surely, 2^406666460 is an apocalyptic number.

It is an amenable number.

406666460 is an abundant number, since it is smaller than the sum of its proper divisors (447991540).

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

406666460 is a wasteful number, since it uses less digits than its factorization.

406666460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15685 (or 15683 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 406666460 is about 20165.9728255296. The cubic root of 406666460 is about 740.8770098738.

The spelling of 406666460 in words is "four hundred six million, six hundred sixty-six thousand, four hundred sixty".