206451672 has 64 divisors (see below), whose sum is σ = 624568320. Its totient is φ = 55515648.

The previous prime is 206451671. The next prime is 206451691. The reversal of 206451672 is 276154602.

206451672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206451671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33288 + ... + 38999.

It is an arithmetic number, because the mean of its divisors is an integer number (9758880).

Almost surely, 2^206451672 is an apocalyptic number.

It is an amenable number.

206451672 is an abundant number, since it is smaller than the sum of its proper divisors (418116648).

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

206451672 is a wasteful number, since it uses less digits than its factorization.

206451672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72320 (or 72316 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 206451672 is about 14368.4262186226. The cubic root of 206451672 is about 591.0253853463.

The spelling of 206451672 in words is "two hundred six million, four hundred fifty-one thousand, six hundred seventy-two".