4305641 has 4 divisors (see below), whose sum is σ = 4558932. Its totient is φ = 4052352.

The previous prime is 4305629. The next prime is 4305649. The reversal of 4305641 is 1465034.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 960400 = 1829^2 + 980^2 .

It is a cyclic number.

It is not a de Polignac number, because 4305641 - 2²² = 111337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4305649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126620 + ... + 126653.

It is an arithmetic number, because the mean of its divisors is an integer number (1139733).

Almost surely, 2^4305641 is an apocalyptic number.

It is an amenable number.

4305641 is a deficient number, since it is larger than the sum of its proper divisors (253291).

4305641 is a wasteful number, since it uses less digits than its factorization.

4305641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253290.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 4305641 is about 2075.0038554181. The cubic root of 4305641 is about 162.6844107633.

The spelling of 4305641 in words is "four million, three hundred five thousand, six hundred forty-one".