210896730 has 128 divisors (see below), whose sum is σ = 649762560. Its totient is φ = 48107520.

The previous prime is 210896681. The next prime is 210896731. The reversal of 210896730 is 37698012.

It is not an unprimeable number, because it can be changed into a prime (210896731) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48402 + ... + 52578.

It is an arithmetic number, because the mean of its divisors is an integer number (5076270).

Almost surely, 2^210896730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210896730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324881280).

210896730 is an abundant number, since it is smaller than the sum of its proper divisors (438865830).

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

210896730 is a wasteful number, since it uses less digits than its factorization.

210896730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221 (or 4215 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 210896730 is about 14522.2839112861. The cubic root of 210896730 is about 595.2370404075.

The spelling of 210896730 in words is "two hundred ten million, eight hundred ninety-six thousand, seven hundred thirty".