206423384 has 16 divisors (see below), whose sum is σ = 409811400. Its totient is φ = 97140352.

The previous prime is 206423383. The next prime is 206423411. The reversal of 206423384 is 483324602.

It is a super-2 number, since 2×206423384² = 85221226924022912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206423384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206423383) 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 3 ways as a sum of consecutive naturals, for example, 758774 + ... + 759045.

Almost surely, 2^206423384 is an apocalyptic number.

It is an amenable number.

206423384 is a deficient number, since it is larger than the sum of its proper divisors (203388016).

206423384 is a wasteful number, since it uses less digits than its factorization.

206423384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517842 (or 1517838 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 206423384 is about 14367.4418043018. The cubic root of 206423384 is about 590.9983900216.

Adding to 206423384 its reverse (483324602), we get a palindrome (689747986).

The spelling of 206423384 in words is "two hundred six million, four hundred twenty-three thousand, three hundred eighty-four".