3424403221 has 4 divisors (see below), whose sum is σ = 3497262912. Its totient is φ = 3351543532.

The previous prime is 3424403197. The next prime is 3424403239. The reversal of 3424403221 is 1223044243.

It is a happy number.

3424403221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3424403221 - 2³¹ = 1276919573 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 (3424403621) 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, 36429775 + ... + 36429868.

It is an arithmetic number, because the mean of its divisors is an integer number (874315728).

Almost surely, 2^3424403221 is an apocalyptic number.

It is an amenable number.

3424403221 is a deficient number, since it is larger than the sum of its proper divisors (72859691).

3424403221 is an equidigital number, since it uses as much as digits as its factorization.

3424403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72859690.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 3424403221 is about 58518.4007043938. The cubic root of 3424403221 is about 1507.2835715171.

Adding to 3424403221 its reverse (1223044243), we get a palindrome (4647447464).

The spelling of 3424403221 in words is "three billion, four hundred twenty-four million, four hundred three thousand, two hundred twenty-one".