3404021213 has 4 divisors (see below), whose sum is σ = 3409079868. Its totient is φ = 3398962560.

The previous prime is 3404021177. The next prime is 3404021233. The reversal of 3404021213 is 3121204043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3121204043 = 19 ⋅164273897.

It can be written as a sum of positive squares in 2 ways, for example, as 2502700729 + 901320484 = 50027^2 + 30022^2 .

It is a cyclic number.

It is not a de Polignac number, because 3404021213 - 2²⁶ = 3336912349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3404021233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528318 + ... + 2529663.

It is an arithmetic number, because the mean of its divisors is an integer number (852269967).

Almost surely, 2^3404021213 is an apocalyptic number.

It is an amenable number.

3404021213 is a deficient number, since it is larger than the sum of its proper divisors (5058655).

3404021213 is an equidigital number, since it uses as much as digits as its factorization.

3404021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058654.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3404021213 is about 58343.9903760447. The cubic root of 3404021213 is about 1504.2871740484.

Adding to 3404021213 its reverse (3121204043), we get a palindrome (6525225256).

The spelling of 3404021213 in words is "three billion, four hundred four million, twenty-one thousand, two hundred thirteen".