4342324221 has 14 divisors (see below), whose sum is σ = 6510509150. Its totient is φ = 2894882328.

The previous prime is 4342324141. The next prime is 4342324243. The reversal of 4342324221 is 1224232434.

4342324221 is a `hidden beast` number, since 4 + 3 + 4 + 232 + 422 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4146716025 + 195608196 = 64395^2 + 13986^2 .

It is not a de Polignac number, because 4342324221 - 2¹⁹ = 4341799933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4342324621) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2977546 + ... + 2979003.

Almost surely, 2^4342324221 is an apocalyptic number.

It is an amenable number.

4342324221 is a deficient number, since it is larger than the sum of its proper divisors (2168184929).

4342324221 is an frugal number, since it uses more digits than its factorization.

4342324221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5956567 (or 5956552 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 4342324221 is about 65896.3141685482. The cubic root of 4342324221 is about 1631.4511799440.

Adding to 4342324221 its reverse (1224232434), we get a palindrome (5566556655).

The spelling of 4342324221 in words is "four billion, three hundred forty-two million, three hundred twenty-four thousand, two hundred twenty-one".