213402034044 has 72 divisors (see below), whose sum is σ = 541584546048. Its totient is φ = 70850777760.

The previous prime is 213402034003. The next prime is 213402034123. The reversal of 213402034044 is 440430204312.

It is a happy number.

213402034044 is a `hidden beast` number, since 2 + 13 + 40 + 203 + 404 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 213402033999 and 213402034017.

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, 10916559 + ... + 10936089.

It is an arithmetic number, because the mean of its divisors is an integer number (7522007584).

Almost surely, 2^213402034044 is an apocalyptic number.

It is an amenable number.

213402034044 is an abundant number, since it is smaller than the sum of its proper divisors (328182512004).

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

213402034044 is a wasteful number, since it uses less digits than its factorization.

213402034044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20735 (or 20730 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 213402034044 its reverse (440430204312), we get a palindrome (653832238356).

The spelling of 213402034044 in words is "two hundred thirteen billion, four hundred two million, thirty-four thousand, forty-four".