210241992 has 128 divisors (see below), whose sum is σ = 602467200. Its totient is φ = 60715008.

The previous prime is 210241987. The next prime is 210242017. The reversal of 210241992 is 299142012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286458 + ... + 287190.

It is an arithmetic number, because the mean of its divisors is an integer number (4706775).

Almost surely, 2^210241992 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 210241992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301233600).

210241992 is an abundant number, since it is smaller than the sum of its proper divisors (392225208).

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

210241992 is a wasteful number, since it uses less digits than its factorization.

210241992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 210241992 is about 14499.7238594395. The cubic root of 210241992 is about 594.6204221671.

The spelling of 210241992 in words is "two hundred ten million, two hundred forty-one thousand, nine hundred ninety-two".