213930710440 has 16 divisors (see below), whose sum is σ = 481344098580. Its totient is φ = 85572284160.

The previous prime is 213930710423. The next prime is 213930710489. The reversal of 213930710440 is 44017039312.

213930710440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 210925258756 + 3005451684 = 459266^2 + 54822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213930710396 and 213930710405.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2674133841 + ... + 2674133920.

Almost surely, 2^213930710440 is an apocalyptic number.

213930710440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213930710440 is an abundant number, since it is smaller than the sum of its proper divisors (267413388140).

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

213930710440 is a wasteful number, since it uses less digits than its factorization.

213930710440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348267772 (or 5348267768 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

Adding to 213930710440 its reverse (44017039312), we get a palindrome (257947749752).

The spelling of 213930710440 in words is "two hundred thirteen billion, nine hundred thirty million, seven hundred ten thousand, four hundred forty".