206820264 has 32 divisors (see below), whose sum is σ = 590915520. Its totient is φ = 59091456.

The previous prime is 206820241. The next prime is 206820293. The reversal of 206820264 is 462028602.

206820264 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, 615369 + ... + 615704.

It is an arithmetic number, because the mean of its divisors is an integer number (18466110).

Almost surely, 2^206820264 is an apocalyptic number.

206820264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

206820264 is an abundant number, since it is smaller than the sum of its proper divisors (384095256).

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

206820264 is a wasteful number, since it uses less digits than its factorization.

206820264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231089 (or 1231085 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 206820264 is about 14381.2469556711. The cubic root of 206820264 is about 591.3769086341.

Adding to 206820264 its reverse (462028602), we get a palindrome (668848866).

The spelling of 206820264 in words is "two hundred six million, eight hundred twenty thousand, two hundred sixty-four".