605115620 has 12 divisors (see below), whose sum is σ = 1270742844. Its totient is φ = 242046240.

The previous prime is 605115617. The next prime is 605115631. The reversal of 605115620 is 26511506.

It can be written as a sum of positive squares in 2 ways, for example, as 346034404 + 259081216 = 18602^2 + 16096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 605115620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15127871 + ... + 15127910.

It is an arithmetic number, because the mean of its divisors is an integer number (105895237).

Almost surely, 2^605115620 is an apocalyptic number.

It is an amenable number.

605115620 is an abundant number, since it is smaller than the sum of its proper divisors (665627224).

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

605115620 is a wasteful number, since it uses less digits than its factorization.

605115620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255790 (or 30255788 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 605115620 is about 24599.0979509412. The cubic root of 605115620 is about 845.8229299655.

The spelling of 605115620 in words is "six hundred five million, one hundred fifteen thousand, six hundred twenty".