206040394 has 24 divisors (see below), whose sum is σ = 375154848. Its totient is φ = 84462840.

The previous prime is 206040379. The next prime is 206040451. The reversal of 206040394 is 493040602.

206040394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43452 + ... + 47959.

It is an arithmetic number, because the mean of its divisors is an integer number (15631452).

Almost surely, 2^206040394 is an apocalyptic number.

206040394 is a deficient number, since it is larger than the sum of its proper divisors (169114454).

206040394 is a wasteful number, since it uses less digits than its factorization.

206040394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91450 (or 91443 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 206040394 is about 14354.1072170999. The cubic root of 206040394 is about 590.6326585198.

Adding to 206040394 its reverse (493040602), we get a palindrome (699080996).

The spelling of 206040394 in words is "two hundred six million, forty thousand, three hundred ninety-four".