213229840438 has 16 divisors (see below), whose sum is σ = 321032974176. Its totient is φ = 106219497600.

The previous prime is 213229840433. The next prime is 213229840459. The reversal of 213229840438 is 834048922312.

213229840438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213229840433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498520 + ... + 821572.

It is an arithmetic number, because the mean of its divisors is an integer number (20064560886).

Almost surely, 2^213229840438 is an apocalyptic number.

213229840438 is a deficient number, since it is larger than the sum of its proper divisors (107803133738).

213229840438 is a wasteful number, since it uses less digits than its factorization.

213229840438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324279.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 213229840438 in words is "two hundred thirteen billion, two hundred twenty-nine million, eight hundred forty thousand, four hundred thirty-eight".