206216434 has 4 divisors (see below), whose sum is σ = 309324654. Its totient is φ = 103108216.

The previous prime is 206216399. The next prime is 206216441. The reversal of 206216434 is 434612602.

206216434 is digitally balanced in base 2 and base 3, because in such bases 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., 135606025 + 70610409 = 11645^2 + 8403^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51554107 + ... + 51554110.

Almost surely, 2^206216434 is an apocalyptic number.

206216434 is a deficient number, since it is larger than the sum of its proper divisors (103108220).

206216434 is a wasteful number, since it uses less digits than its factorization.

206216434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103108219.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 206216434 is about 14360.2379506748. The cubic root of 206216434 is about 590.8008219453.

It can be divided in two parts, 2062 and 16434, that added together give a square (18496 = 136²).

The spelling of 206216434 in words is "two hundred six million, two hundred sixteen thousand, four hundred thirty-four".