212440550 has 48 divisors (see below), whose sum is σ = 452804352. Its totient is φ = 72640800.

The previous prime is 212440549. The next prime is 212440561. The reversal of 212440550 is 55044212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199319 + ... + 200381.

It is an arithmetic number, because the mean of its divisors is an integer number (9433424).

Almost surely, 2^212440550 is an apocalyptic number.

212440550 is an abundant number, since it is smaller than the sum of its proper divisors (240363802).

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

212440550 is a wasteful number, since it uses less digits than its factorization.

212440550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 212440550 is about 14575.3404762976. The cubic root of 212440550 is about 596.6859416943.

Adding to 212440550 its reverse (55044212), we get a palindrome (267484762).

The spelling of 212440550 in words is "two hundred twelve million, four hundred forty thousand, five hundred fifty".