4080540 has 48 divisors (see below), whose sum is σ = 11676672. Its totient is φ = 1064256.

The previous prime is 4080539. The next prime is 4080541. The reversal of 4080540 is 450804.

It is an interprime number because it is at equal distance from previous prime (4080539) and next prime (4080541).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4080541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2097 + ... + 3543.

It is an arithmetic number, because the mean of its divisors is an integer number (243264).

Almost surely, 2^4080540 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 4080540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5838336).

4080540 is an abundant number, since it is smaller than the sum of its proper divisors (7596132).

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

4080540 is a wasteful number, since it uses less digits than its factorization.

4080540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4080540 is about 2020.0346531681. The cubic root of 4080540 is about 159.7984441184.

The spelling of 4080540 in words is "four million, eighty thousand, five hundred forty".