212134044 has 12 divisors (see below), whose sum is σ = 494979464. Its totient is φ = 70711344.

The previous prime is 212134009. The next prime is 212134049. The reversal of 212134044 is 440431212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 212134044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212134049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8838907 + ... + 8838930.

Almost surely, 2^212134044 is an apocalyptic number.

It is an amenable number.

212134044 is an abundant number, since it is smaller than the sum of its proper divisors (282845420).

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

212134044 is a wasteful number, since it uses less digits than its factorization.

212134044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17677844 (or 17677842 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 212134044 is about 14564.8221410356. The cubic root of 212134044 is about 596.3988404359.

Adding to 212134044 its reverse (440431212), we get a palindrome (652565256).

The spelling of 212134044 in words is "two hundred twelve million, one hundred thirty-four thousand, forty-four".