4095540 has 72 divisors (see below), whose sum is σ = 12660648. Its totient is φ = 1071360.

The previous prime is 4095529. The next prime is 4095547. The reversal of 4095540 is 455904.

It can be written as a sum of positive squares in 4 ways, for example, as 7056 + 4088484 = 84^2 + 2022^2 .

It is a super-3 number, since 3×4095540³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4095547) 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, 10794 + ... + 11166.

Almost surely, 2^4095540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4095540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6330324).

4095540 is an abundant number, since it is smaller than the sum of its proper divisors (8565108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4095540 is a wasteful number, since it uses less digits than its factorization.

4095540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 4095540 is about 2023.7440549635. The cubic root of 4095540 is about 159.9940101924.

The spelling of 4095540 in words is "four million, ninety-five thousand, five hundred forty".