206830420 has 12 divisors (see below), whose sum is σ = 434343924. Its totient is φ = 82732160.

The previous prime is 206830417. The next prime is 206830423. The reversal of 206830420 is 24038602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (206830417) and next prime (206830423).

It can be written as a sum of positive squares in 2 ways, for example, as 132388036 + 74442384 = 11506^2 + 8628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206830423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5170741 + ... + 5170780.

It is an arithmetic number, because the mean of its divisors is an integer number (36195327).

Almost surely, 2^206830420 is an apocalyptic number.

206830420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206830420 is an abundant number, since it is smaller than the sum of its proper divisors (227513504).

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

206830420 is a wasteful number, since it uses less digits than its factorization.

206830420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341530 (or 10341528 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 206830420 is about 14381.6000500640. The cubic root of 206830420 is about 591.3865884167.

The spelling of 206830420 in words is "two hundred six million, eight hundred thirty thousand, four hundred twenty".