206972288 has 32 divisors (see below), whose sum is σ = 413210160. Its totient is φ = 103264768.

The previous prime is 206972273. The next prime is 206972291. The reversal of 206972288 is 882279602.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69845 + ... + 72747.

Almost surely, 2^206972288 is an apocalyptic number.

It is an amenable number.

206972288 is a deficient number, since it is larger than the sum of its proper divisors (206237872).

206972288 is an equidigital number, since it uses as much as digits as its factorization.

206972288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474 (or 3462 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 206972288 is about 14386.5314791301. The cubic root of 206972288 is about 591.5217710740.

The spelling of 206972288 in words is "two hundred six million, nine hundred seventy-two thousand, two hundred eighty-eight".