206871456 has 96 divisors (see below), whose sum is σ = 595703808. Its totient is φ = 62339840.

The previous prime is 206871421. The next prime is 206871461. The reversal of 206871456 is 654178602.

It is a tau number, because it is divible by the number of its divisors (96).

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, 239281 + ... + 240143.

It is an arithmetic number, because the mean of its divisors is an integer number (6205248).

Almost surely, 2^206871456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206871456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297851904).

206871456 is an abundant number, since it is smaller than the sum of its proper divisors (388832352).

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

206871456 is a wasteful number, since it uses less digits than its factorization.

206871456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 206871456 is about 14383.0266633974. The cubic root of 206871456 is about 591.4256970018.

The spelling of 206871456 in words is "two hundred six million, eight hundred seventy-one thousand, four hundred fifty-six".