206635234 has 16 divisors (see below), whose sum is σ = 340095672. Its totient is φ = 93570048.

The previous prime is 206635213. The next prime is 206635249. The reversal of 206635234 is 432536602.

206635234 = T₄₀₄ + T₄₀₅ + ... + T₁₀₉₂.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118744609 + 87890625 = 10897^2 + 9375^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206635196 and 206635205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73599 + ... + 76354.

Almost surely, 2^206635234 is an apocalyptic number.

206635234 is a deficient number, since it is larger than the sum of its proper divisors (133460438).

206635234 is a wasteful number, since it uses less digits than its factorization.

206635234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150021.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 206635234 is about 14374.8124857335. The cubic root of 206635234 is about 591.2004992327.

The spelling of 206635234 in words is "two hundred six million, six hundred thirty-five thousand, two hundred thirty-four".