210680000 has 140 divisors (see below), whose sum is σ = 547512240. Its totient is φ = 80256000.

The previous prime is 210679981. The next prime is 210680021. The reversal of 210680000 is 86012.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 919886 + ... + 920114.

Almost surely, 2^210680000 is an apocalyptic number.

210680000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273756120).

210680000 is an abundant number, since it is smaller than the sum of its proper divisors (336832240).

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

210680000 is an equidigital number, since it uses as much as digits as its factorization.

210680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 210680000 is about 14514.8200126629. The cubic root of 210680000 is about 595.0330702143.

The spelling of 210680000 in words is "two hundred ten million, six hundred eighty thousand".