206404034 has 4 divisors (see below), whose sum is σ = 309606054. Its totient is φ = 103202016.

The previous prime is 206404027. The next prime is 206404039. The reversal of 206404034 is 430404602.

It is a happy number.

206404034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120934009 + 85470025 = 10997^2 + 9245^2 .

It is a super-3 number, since 3×206404034³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (206404039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51601007 + ... + 51601010.

Almost surely, 2^206404034 is an apocalyptic number.

206404034 is a deficient number, since it is larger than the sum of its proper divisors (103202020).

206404034 is a wasteful number, since it uses less digits than its factorization.

206404034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103202019.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 206404034 is about 14366.7683909778. The cubic root of 206404034 is about 590.9799228370.

Adding to 206404034 its reverse (430404602), we get a palindrome (636808636).

The spelling of 206404034 in words is "two hundred six million, four hundred four thousand, thirty-four".