210004992 has 66 divisors (see below), whose sum is σ = 606411468. Its totient is φ = 69998592.

The previous prime is 210004987. The next prime is 210005011. The reversal of 210004992 is 299400012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2178 + ... + 20609.

Almost surely, 2^210004992 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 210004992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303205734).

210004992 is an abundant number, since it is smaller than the sum of its proper divisors (396406476).

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

210004992 is a wasteful number, since it uses less digits than its factorization.

210004992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22813 (or 22792 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 210004992 is about 14491.5489855295. The cubic root of 210004992 is about 594.3969050895.

The spelling of 210004992 in words is "two hundred ten million, four thousand, nine hundred ninety-two".