4345652221 has 8 divisors (see below), whose sum is σ = 4410889560. Its totient is φ = 4280876352.

The previous prime is 4345652219. The next prime is 4345652237. The reversal of 4345652221 is 1222565434.

It can be written as a sum of positive squares in 4 ways, for example, as 2895946596 + 1449705625 = 53814^2 + 38075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4345652221 - 2¹ = 4345652219 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 (4345652921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96370 + ... + 134083.

It is an arithmetic number, because the mean of its divisors is an integer number (551361195).

Almost surely, 2^4345652221 is an apocalyptic number.

It is an amenable number.

4345652221 is a deficient number, since it is larger than the sum of its proper divisors (65237339).

4345652221 is a wasteful number, since it uses less digits than its factorization.

4345652221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230735.

The product of its digits is 57600, while the sum is 34.

The square root of 4345652221 is about 65921.5611238083. The cubic root of 4345652221 is about 1631.8678602573.

The spelling of 4345652221 in words is "four billion, three hundred forty-five million, six hundred fifty-two thousand, two hundred twenty-one".