206485440 has 112 divisors (see below), whose sum is σ = 749271552. Its totient is φ = 47195136.

The previous prime is 206485399. The next prime is 206485457. The reversal of 206485440 is 44584602.

206485440 is digitally balanced in base 2, 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 (112).

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, 8644 + ... + 22083.

Almost surely, 2^206485440 is an apocalyptic number.

206485440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206485440 is an abundant number, since it is smaller than the sum of its proper divisors (542786112).

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

206485440 is a wasteful number, since it uses less digits than its factorization.

206485440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30754 (or 30744 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 206485440 is about 14369.6012470771. The cubic root of 206485440 is about 591.0576070232.

The spelling of 206485440 in words is "two hundred six million, four hundred eighty-five thousand, four hundred forty".