200660634 has 48 divisors (see below), whose sum is σ = 463226400. Its totient is φ = 62594208.

The previous prime is 200660627. The next prime is 200660701. The reversal of 200660634 is 436066002.

200660634 is a `hidden beast` number, since 20 + 0 + 6 + 6 + 0 + 634 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 200660598 and 200660607.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24852 + ... + 31920.

It is an arithmetic number, because the mean of its divisors is an integer number (9650550).

Almost surely, 2^200660634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200660634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231613200).

200660634 is an abundant number, since it is smaller than the sum of its proper divisors (262565766).

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

200660634 is a wasteful number, since it uses less digits than its factorization.

200660634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7179 (or 7176 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 200660634 is about 14165.4733066001. The cubic root of 200660634 is about 585.4467418131.

The spelling of 200660634 in words is "two hundred million, six hundred sixty thousand, six hundred thirty-four".