206326320 has 80 divisors (see below), whose sum is σ = 673290240. Its totient is φ = 52123392.

The previous prime is 206326277. The next prime is 206326327. The reversal of 206326320 is 23623602.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (206326327) 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, 18064 + ... + 27183.

It is an arithmetic number, because the mean of its divisors is an integer number (8416128).

Almost surely, 2^206326320 is an apocalyptic number.

206326320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206326320 is an abundant number, since it is smaller than the sum of its proper divisors (466963920).

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

206326320 is a wasteful number, since it uses less digits than its factorization.

206326320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45282 (or 45276 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 206326320 is about 14364.0634919232. The cubic root of 206326320 is about 590.9057427962.

Adding to 206326320 its reverse (23623602), we get a palindrome (229949922).

The spelling of 206326320 in words is "two hundred six million, three hundred twenty-six thousand, three hundred twenty".