206626530 has 64 divisors (see below), whose sum is σ = 543086208. Its totient is φ = 49896960.

The previous prime is 206626499. The next prime is 206626531. The reversal of 206626530 is 35626602.

206626530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (206626531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95622 + ... + 97758.

It is an arithmetic number, because the mean of its divisors is an integer number (8485722).

Almost surely, 2^206626530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206626530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271543104).

206626530 is an abundant number, since it is smaller than the sum of its proper divisors (336459678).

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

206626530 is a wasteful number, since it uses less digits than its factorization.

206626530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 206626530 is about 14374.5097307700. The cubic root of 206626530 is about 591.1921981614.

The spelling of 206626530 in words is "two hundred six million, six hundred twenty-six thousand, five hundred thirty".