206572128 has 48 divisors (see below), whose sum is σ = 619718400. Its totient is φ = 59020416.

The previous prime is 206572087. The next prime is 206572139. The reversal of 206572128 is 821275602.

206572128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 153028 + ... + 154371.

It is an arithmetic number, because the mean of its divisors is an integer number (12910800).

Almost surely, 2^206572128 is an apocalyptic number.

206572128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

206572128 is an abundant number, since it is smaller than the sum of its proper divisors (413146272).

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

206572128 is a wasteful number, since it uses less digits than its factorization.

206572128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307419 (or 307411 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 206572128 is about 14372.6172981820. The cubic root of 206572128 is about 591.1403092760.

The spelling of 206572128 in words is "two hundred six million, five hundred seventy-two thousand, one hundred twenty-eight".