210681006 has 32 divisors (see below), whose sum is σ = 444192000. Its totient is φ = 66432960.

The previous prime is 210680999. The next prime is 210681011. The reversal of 210681006 is 600186012.

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, 149895 + ... + 151293.

It is an arithmetic number, because the mean of its divisors is an integer number (13881000).

Almost surely, 2^210681006 is an apocalyptic number.

210681006 is an abundant number, since it is smaller than the sum of its proper divisors (233510994).

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

210681006 is a wasteful number, since it uses less digits than its factorization.

210681006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 210681006 is about 14514.8546668577. The cubic root of 210681006 is about 595.0340173099.

The spelling of 210681006 in words is "two hundred ten million, six hundred eighty-one thousand, six".