206230690 has 32 divisors (see below), whose sum is σ = 378333504. Its totient is φ = 80921280.

The previous prime is 206230679. The next prime is 206230699. The reversal of 206230690 is 96032602.

It is a super-2 number, since 2×206230690² = 85062194995752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206230699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211905 + ... + 212875.

It is an arithmetic number, because the mean of its divisors is an integer number (11822922).

Almost surely, 2^206230690 is an apocalyptic number.

206230690 is a deficient number, since it is larger than the sum of its proper divisors (172102814).

206230690 is a wasteful number, since it uses less digits than its factorization.

206230690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 206230690 is about 14360.7343127014. The cubic root of 206230690 is about 590.8144358982.

The spelling of 206230690 in words is "two hundred six million, two hundred thirty thousand, six hundred ninety".