4320540445 has 24 divisors (see below), whose sum is σ = 5613812568. Its totient is φ = 3173304960.

The previous prime is 4320540421. The next prime is 4320540449. The reversal of 4320540445 is 5440450234.

It can be written as a sum of positive squares in 4 ways, for example, as 472323289 + 3848217156 = 21733^2 + 62034^2 .

It is not a de Polignac number, because 4320540445 - 2⁹ = 4320539933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320540449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2893119 + ... + 2894611.

It is an arithmetic number, because the mean of its divisors is an integer number (233908857).

Almost surely, 2^4320540445 is an apocalyptic number.

It is an amenable number.

4320540445 is a deficient number, since it is larger than the sum of its proper divisors (1293272123).

4320540445 is a wasteful number, since it uses less digits than its factorization.

4320540445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 4320540445 is about 65730.8180764548. The cubic root of 4320540445 is about 1628.7184834874.

Adding to 4320540445 its reverse (5440450234), we get a palindrome (9760990679).

The spelling of 4320540445 in words is "four billion, three hundred twenty million, five hundred forty thousand, four hundred forty-five".