212245732 has 24 divisors (see below), whose sum is σ = 393624000. Its totient is φ = 99857376.

The previous prime is 212245717. The next prime is 212245739. The reversal of 212245732 is 237542212.

212245732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212245732.

It is not an unprimeable number, because it can be changed into a prime (212245739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (16401000).

Almost surely, 2^212245732 is an apocalyptic number.

It is an amenable number.

212245732 is a deficient number, since it is larger than the sum of its proper divisors (181378268).

212245732 is a wasteful number, since it uses less digits than its factorization.

212245732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18915 (or 18913 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 212245732 is about 14568.6558062163. The cubic root of 212245732 is about 596.5034895306.

Adding to 212245732 its reverse (237542212), we get a palindrome (449787944).

The spelling of 212245732 in words is "two hundred twelve million, two hundred forty-five thousand, seven hundred thirty-two".