606665420 has 24 divisors (see below), whose sum is σ = 1282554000. Its totient is φ = 241036352.

The previous prime is 606665419. The next prime is 606665453. The reversal of 606665420 is 24566606.

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, 98810 + ... + 104769.

It is an arithmetic number, because the mean of its divisors is an integer number (53439750).

Almost surely, 2^606665420 is an apocalyptic number.

It is an amenable number.

606665420 is an abundant number, since it is smaller than the sum of its proper divisors (675888580).

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

606665420 is a wasteful number, since it uses less digits than its factorization.

606665420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203737 (or 203735 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 606665420 is about 24630.5789619327. The cubic root of 606665420 is about 846.5444112921.

The spelling of 606665420 in words is "six hundred six million, six hundred sixty-five thousand, four hundred twenty".