334405213 has 4 divisors (see below), whose sum is σ = 334927548. Its totient is φ = 333882880.

The previous prime is 334405207. The next prime is 334405217. The reversal of 334405213 is 312504433.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190357209 + 144048004 = 13797^2 + 12002^2 .

It is a cyclic number.

It is not a de Polignac number, because 334405213 - 2⁹ = 334404701 is a prime.

It is a super-2 number, since 2×334405213² = 223653692963150738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334405217) 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 3 ways as a sum of consecutive naturals, for example, 260206 + ... + 261487.

It is an arithmetic number, because the mean of its divisors is an integer number (83731887).

Almost surely, 2^334405213 is an apocalyptic number.

It is an amenable number.

334405213 is a deficient number, since it is larger than the sum of its proper divisors (522335).

334405213 is an equidigital number, since it uses as much as digits as its factorization.

334405213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522334.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 334405213 is about 18286.7496565136. The cubic root of 334405213 is about 694.1036790015.

Adding to 334405213 its reverse (312504433), we get a palindrome (646909646).

The spelling of 334405213 in words is "three hundred thirty-four million, four hundred five thousand, two hundred thirteen".