200912634 has 48 divisors (see below), whose sum is σ = 473493384. Its totient is φ = 61200000.

The previous prime is 200912633. The next prime is 200912687. The reversal of 200912634 is 436219002.

200912634 is a `hidden beast` number, since 20 + 0 + 9 + 1 + 2 + 634 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 147549609 + 53363025 = 12147^2 + 7305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200912598 and 200912607.

It is not an unprimeable number, because it can be changed into a prime (200912633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19384 + ... + 27884.

Almost surely, 2^200912634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200912634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236746692).

200912634 is an abundant number, since it is smaller than the sum of its proper divisors (272580750).

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

200912634 is a wasteful number, since it uses less digits than its factorization.

200912634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8623 (or 8620 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 200912634 is about 14174.3653826194. The cubic root of 200912634 is about 585.6917173877.

The spelling of 200912634 in words is "two hundred million, nine hundred twelve thousand, six hundred thirty-four".