528736212 has 36 divisors (see below), whose sum is σ = 1349769876. Its totient is φ = 174499200.

The previous prime is 528736211. The next prime is 528736291. The reversal of 528736212 is 212637825.

528736212 is a `hidden beast` number, since 5 + 28 + 7 + 3 + 621 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 518199696 + 10536516 = 22764^2 + 3246^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528736211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69073 + ... + 76344.

Almost surely, 2^528736212 is an apocalyptic number.

It is an amenable number.

528736212 is an abundant number, since it is smaller than the sum of its proper divisors (821033664).

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

528736212 is a wasteful number, since it uses less digits than its factorization.

528736212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145528 (or 145523 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 528736212 is about 22994.2647631969. The cubic root of 528736212 is about 808.6234874135.

The spelling of 528736212 in words is "five hundred twenty-eight million, seven hundred thirty-six thousand, two hundred twelve".