3402344221 has 2 divisors, whose sum is σ = 3402344222. Its totient is φ = 3402344220.

The previous prime is 3402344167. The next prime is 3402344261. The reversal of 3402344221 is 1224432043.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2151660996 + 1250683225 = 46386^2 + 35365^2 .

It is an emirp because it is prime and its reverse (1224432043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3402344221 - 2¹⁷ = 3402213149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3402344261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701172110 + 1701172111.

It is an arithmetic number, because the mean of its divisors is an integer number (1701172111).

Almost surely, 2^3402344221 is an apocalyptic number.

It is an amenable number.

3402344221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3402344221 is an equidigital number, since it uses as much as digits as its factorization.

3402344221 is an evil number, because the sum of its binary digits is even.

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

The square root of 3402344221 is about 58329.6170140007. The cubic root of 3402344221 is about 1504.0401043056.

Adding to 3402344221 its reverse (1224432043), we get a palindrome (4626776264).

The spelling of 3402344221 in words is "three billion, four hundred two million, three hundred forty-four thousand, two hundred twenty-one".