206157030 has 32 divisors (see below), whose sum is σ = 520819200. Its totient is φ = 52081632.

The previous prime is 206157023. The next prime is 206157047. The reversal of 206157030 is 30751602.

206157030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180270 + ... + 181409.

It is an arithmetic number, because the mean of its divisors is an integer number (16275600).

Almost surely, 2^206157030 is an apocalyptic number.

206157030 is an abundant number, since it is smaller than the sum of its proper divisors (314662170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206157030 is a wasteful number, since it uses less digits than its factorization.

206157030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361708.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 206157030 is about 14358.1694515701. The cubic root of 206157030 is about 590.7440865664.

The spelling of 206157030 in words is "two hundred six million, one hundred fifty-seven thousand, thirty".