206490 has 16 divisors (see below), whose sum is σ = 495648. Its totient is φ = 55056.

The previous prime is 206489. The next prime is 206501. The reversal of 206490 is 94602.

206490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3412 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (30978).

2²⁰⁶⁴⁹⁰ is an apocalyptic number.

206490 is an abundant number, since it is smaller than the sum of its proper divisors (289158).

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

206490 is a wasteful number, since it uses less digits than its factorization.

206490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 206490 is about 454.4117075957. The cubic root of 206490 is about 59.1061957940.

It can be divided in two parts, 206 and 490, that added together give a palindrome (696).

The spelling of 206490 in words is "two hundred six thousand, four hundred ninety".