3440311221 has 4 divisors (see below), whose sum is σ = 4587081632. Its totient is φ = 2293540812.

The previous prime is 3440311219. The next prime is 3440311229. The reversal of 3440311221 is 1221130443.

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 not a de Polignac number, because 3440311221 - 2¹ = 3440311219 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 (3440311229) 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, 573385201 + ... + 573385206.

It is an arithmetic number, because the mean of its divisors is an integer number (1146770408).

Almost surely, 2^3440311221 is an apocalyptic number.

It is an amenable number.

3440311221 is a deficient number, since it is larger than the sum of its proper divisors (1146770411).

3440311221 is a wasteful number, since it uses less digits than its factorization.

3440311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146770410.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3440311221 is about 58654.1662714594. The cubic root of 3440311221 is about 1509.6139856520.

Adding to 3440311221 its reverse (1221130443), we get a palindrome (4661441664).

The spelling of 3440311221 in words is "three billion, four hundred forty million, three hundred eleven thousand, two hundred twenty-one".