206726994 has 24 divisors (see below), whose sum is σ = 448212492. Its totient is φ = 68862240.

The previous prime is 206726981. The next prime is 206726999. The reversal of 206726994 is 499627602.

It can be written as a sum of positive squares in 2 ways, for example, as 206066025 + 660969 = 14355^2 + 813^2 .

It is not an unprimeable number, because it can be changed into a prime (206726999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32604 + ... + 38424.

Almost surely, 2^206726994 is an apocalyptic number.

206726994 is an abundant number, since it is smaller than the sum of its proper divisors (241485498).

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

206726994 is a wasteful number, since it uses less digits than its factorization.

206726994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802 (or 7799 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 206726994 is about 14378.0038252881. The cubic root of 206726994 is about 591.2879972660.

The spelling of 206726994 in words is "two hundred six million, seven hundred twenty-six thousand, nine hundred ninety-four".