213214044 has 12 divisors (see below), whose sum is σ = 497499464. Its totient is φ = 71071344.

The previous prime is 213214039. The next prime is 213214069. The reversal of 213214044 is 440412312.

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 213214044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8883907 + ... + 8883930.

Almost surely, 2^213214044 is an apocalyptic number.

It is an amenable number.

213214044 is an abundant number, since it is smaller than the sum of its proper divisors (284285420).

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

213214044 is a wasteful number, since it uses less digits than its factorization.

213214044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767844 (or 17767842 counting only the distinct ones).

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

The square root of 213214044 is about 14601.8507046196. The cubic root of 213214044 is about 597.4092404875.

Adding to 213214044 its reverse (440412312), we get a palindrome (653626356).

The spelling of 213214044 in words is "two hundred thirteen million, two hundred fourteen thousand, forty-four".