206369390 has 8 divisors (see below), whose sum is σ = 371464920. Its totient is φ = 82547752.

The previous prime is 206369389. The next prime is 206369399. The reversal of 206369390 is 93963602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206369399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10318460 + ... + 10318479.

It is an arithmetic number, because the mean of its divisors is an integer number (46433115).

Almost surely, 2^206369390 is an apocalyptic number.

206369390 is a deficient number, since it is larger than the sum of its proper divisors (165095530).

206369390 is a wasteful number, since it uses less digits than its factorization.

206369390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20636946.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 206369390 is about 14365.5626412612. The cubic root of 206369390 is about 590.9468565356.

The spelling of 206369390 in words is "two hundred six million, three hundred sixty-nine thousand, three hundred ninety".