206928120 has 64 divisors (see below), whose sum is σ = 709470720. Its totient is φ = 47297664.

The previous prime is 206928109. The next prime is 206928149. The reversal of 206928120 is 21829602.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122332 + ... + 124011.

It is an arithmetic number, because the mean of its divisors is an integer number (11085480).

Almost surely, 2^206928120 is an apocalyptic number.

206928120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206928120 is an abundant number, since it is smaller than the sum of its proper divisors (502542600).

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

206928120 is a wasteful number, since it uses less digits than its factorization.

206928120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246364 (or 246360 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 206928120 is about 14384.9963503645. The cubic root of 206928120 is about 591.4796910569.

The spelling of 206928120 in words is "two hundred six million, nine hundred twenty-eight thousand, one hundred twenty".