212442544 has 10 divisors (see below), whose sum is σ = 411607460. Its totient is φ = 106221264.

The previous prime is 212442541. The next prime is 212442551. The reversal of 212442544 is 445244212.

212442544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212442541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6638814 + ... + 6638845.

It is an arithmetic number, because the mean of its divisors is an integer number (41160746).

Almost surely, 2^212442544 is an apocalyptic number.

It is an amenable number.

212442544 is a deficient number, since it is larger than the sum of its proper divisors (199164916).

212442544 is a wasteful number, since it uses less digits than its factorization.

212442544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13277667 (or 13277661 counting only the distinct ones).

The product of its digits is 10240, while the sum is 28.

The square root of 212442544 is about 14575.4088793419. The cubic root of 212442544 is about 596.6878085508.

Adding to 212442544 its reverse (445244212), we get a palindrome (657686756).

The spelling of 212442544 in words is "two hundred twelve million, four hundred forty-two thousand, five hundred forty-four".