606606642 has 12 divisors (see below), whose sum is σ = 1314314430. Its totient is φ = 202202208.

The previous prime is 606606629. The next prime is 606606653. The reversal of 606606642 is 246606606.

606606642 is a `hidden beast` number, since 6 + 0 + 6 + 6 + 0 + 6 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 436851801 + 169754841 = 20901^2 + 13029^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

606606642 is a modest number, since divided by 6642 gives 6066 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 606606597 and 606606606.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16850167 + ... + 16850202.

Almost surely, 2^606606642 is an apocalyptic number.

606606642 is an abundant number, since it is smaller than the sum of its proper divisors (707707788).

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

606606642 is a wasteful number, since it uses less digits than its factorization.

606606642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33700377 (or 33700374 counting only the distinct ones).

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

The square root of 606606642 is about 24629.3857414268. The cubic root of 606606642 is about 846.5170706895.

Subtracting from 606606642 its sum of digits (36), we obtain a palindrome (606606606).

The spelling of 606606642 in words is "six hundred six million, six hundred six thousand, six hundred forty-two".