206292388 has 12 divisors (see below), whose sum is σ = 365068620. Its totient is φ = 101987072.

The previous prime is 206292347. The next prime is 206292407. The reversal of 206292388 is 883292602.

It can be written as a sum of positive squares in 2 ways, for example, as 69355584 + 136936804 = 8328^2 + 11702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 206292388.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 289381 + ... + 290092.

It is an arithmetic number, because the mean of its divisors is an integer number (30422385).

Almost surely, 2^206292388 is an apocalyptic number.

It is an amenable number.

206292388 is a deficient number, since it is larger than the sum of its proper divisors (158776232).

206292388 is a wasteful number, since it uses less digits than its factorization.

206292388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579566 (or 579564 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 206292388 is about 14362.8823012653. The cubic root of 206292388 is about 590.8733479747.

The spelling of 206292388 in words is "two hundred six million, two hundred ninety-two thousand, three hundred eighty-eight".