206248690 has 16 divisors (see below), whose sum is σ = 379147392. Its totient is φ = 80743984.

The previous prime is 206248663. The next prime is 206248699. The reversal of 206248690 is 96842602.

206248690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×206248690² = 85077044253432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206248699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218944 + ... + 219883.

It is an arithmetic number, because the mean of its divisors is an integer number (23696712).

Almost surely, 2^206248690 is an apocalyptic number.

206248690 is a deficient number, since it is larger than the sum of its proper divisors (172898702).

206248690 is a wasteful number, since it uses less digits than its factorization.

206248690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438881.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 206248690 is about 14361.3610079268. The cubic root of 206248690 is about 590.8316243364.

The spelling of 206248690 in words is "two hundred six million, two hundred forty-eight thousand, six hundred ninety".