606657138 has 32 divisors (see below), whose sum is σ = 1285792704. Its totient is φ = 190159872.

The previous prime is 606657113. The next prime is 606657187. The reversal of 606657138 is 831756606.

It is a self number, because there is not a number n which added to its sum of digits gives 606657138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179581 + ... + 182927.

It is an arithmetic number, because the mean of its divisors is an integer number (40181022).

Almost surely, 2^606657138 is an apocalyptic number.

606657138 is an abundant number, since it is smaller than the sum of its proper divisors (679135566).

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

606657138 is a wasteful number, since it uses less digits than its factorization.

606657138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 606657138 is about 24630.4108370120. The cubic root of 606657138 is about 846.5405590244.

The spelling of 606657138 in words is "six hundred six million, six hundred fifty-seven thousand, one hundred thirty-eight".