212528070 has 64 divisors (see below), whose sum is σ = 568788480. Its totient is φ = 56469600.

The previous prime is 212528021. The next prime is 212528077. The reversal of 212528070 is 70825212.

212528070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212528077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82705 + ... + 85235.

It is an arithmetic number, because the mean of its divisors is an integer number (8887320).

Almost surely, 2^212528070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212528070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284394240).

212528070 is an abundant number, since it is smaller than the sum of its proper divisors (356260410).

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

212528070 is a wasteful number, since it uses less digits than its factorization.

212528070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 212528070 is about 14578.3424983775. The cubic root of 212528070 is about 596.7678701583.

The spelling of 212528070 in words is "two hundred twelve million, five hundred twenty-eight thousand, seventy".