213232044 has 24 divisors (see below), whose sum is σ = 508128768. Its totient is φ = 69564880.

The previous prime is 213232039. The next prime is 213232049. The reversal of 213232044 is 440232312.

213232044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213232039) and next prime (213232049).

It is a self number, because there is not a number n which added to its sum of digits gives 213232044.

It is not an unprimeable number, because it can be changed into a prime (213232049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188472 + ... + 189599.

It is an arithmetic number, because the mean of its divisors is an integer number (21172032).

Almost surely, 2^213232044 is an apocalyptic number.

It is an amenable number.

213232044 is an abundant number, since it is smaller than the sum of its proper divisors (294896724).

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

213232044 is a wasteful number, since it uses less digits than its factorization.

213232044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378125 (or 378123 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 213232044 is about 14602.4670518375. The cubic root of 213232044 is about 597.4260515498.

Adding to 213232044 its reverse (440232312), we get a palindrome (653464356).

The spelling of 213232044 in words is "two hundred thirteen million, two hundred thirty-two thousand, forty-four".