212089424 has 40 divisors (see below), whose sum is σ = 420360000. Its totient is φ = 103631616.

The previous prime is 212089421. The next prime is 212089429. The reversal of 212089424 is 424980212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212089421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187292 + ... + 188420.

It is an arithmetic number, because the mean of its divisors is an integer number (10509000).

Almost surely, 2^212089424 is an apocalyptic number.

It is an amenable number.

212089424 is a deficient number, since it is larger than the sum of its proper divisors (208270576).

212089424 is a wasteful number, since it uses less digits than its factorization.

212089424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 212089424 is about 14563.2902875689. The cubic root of 212089424 is about 596.3570222506.

The spelling of 212089424 in words is "two hundred twelve million, eighty-nine thousand, four hundred twenty-four".