206428162 has 4 divisors (see below), whose sum is σ = 309642246. Its totient is φ = 103214080.

The previous prime is 206428129. The next prime is 206428237. The reversal of 206428162 is 261824602.

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., 205893801 + 534361 = 14349^2 + 731^2 .

It is a super-2 number, since 2×206428162² = 85225172133396488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51607039 + ... + 51607042.

Almost surely, 2^206428162 is an apocalyptic number.

206428162 is a deficient number, since it is larger than the sum of its proper divisors (103214084).

206428162 is a wasteful number, since it uses less digits than its factorization.

206428162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103214083.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 206428162 is about 14367.6080820713. The cubic root of 206428162 is about 591.0029498547.

The spelling of 206428162 in words is "two hundred six million, four hundred twenty-eight thousand, one hundred sixty-two".