206865472 has 42 divisors (see below), whose sum is σ = 451226174. Its totient is φ = 94026240.

The previous prime is 206865437. The next prime is 206865487. The reversal of 206865472 is 274568602.

206865472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 205750336 + 1115136 = 14344^2 + 1056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5613 + ... + 21100.

Almost surely, 2^206865472 is an apocalyptic number.

206865472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206865472 is an abundant number, since it is smaller than the sum of its proper divisors (244360702).

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

206865472 is a wasteful number, since it uses less digits than its factorization.

206865472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26747 (or 26726 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 206865472 is about 14382.8186389178. The cubic root of 206865472 is about 591.4199943857.

The spelling of 206865472 in words is "two hundred six million, eight hundred sixty-five thousand, four hundred seventy-two".