211395072 has 80 divisors (see below), whose sum is σ = 643655232. Its totient is φ = 60395520.

The previous prime is 211395061. The next prime is 211395103. The reversal of 211395072 is 270593112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922 + ... + 20582.

Almost surely, 2^211395072 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 211395072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321827616).

211395072 is an abundant number, since it is smaller than the sum of its proper divisors (432260160).

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

211395072 is an equidigital number, since it uses as much as digits as its factorization.

211395072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19689 (or 19673 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 211395072 is about 14539.4316257548. The cubic root of 211395072 is about 595.7055134209.

The spelling of 211395072 in words is "two hundred eleven million, three hundred ninety-five thousand, seventy-two".