213344334 has 48 divisors (see below), whose sum is σ = 551509200. Its totient is φ = 60954768.

The previous prime is 213344311. The next prime is 213344359. The reversal of 213344334 is 433443312.

213344334 is a `hidden beast` number, since 213 + 3 + 443 + 3 + 4 = 666.

213344334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213344298 and 213344307.

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, 37669 + ... + 42960.

It is an arithmetic number, because the mean of its divisors is an integer number (11489775).

Almost surely, 2^213344334 is an apocalyptic number.

213344334 is an abundant number, since it is smaller than the sum of its proper divisors (338164866).

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

213344334 is a wasteful number, since it uses less digits than its factorization.

213344334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80654 (or 80641 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 213344334 is about 14606.3114440299. The cubic root of 213344334 is about 597.5309032061.

Adding to 213344334 its reverse (433443312), we get a palindrome (646787646).

The spelling of 213344334 in words is "two hundred thirteen million, three hundred forty-four thousand, three hundred thirty-four".