4082540 has 72 divisors (see below), whose sum is σ = 10814496. Its totient is φ = 1267200.

The previous prime is 4082539. The next prime is 4082563. The reversal of 4082540 is 452804.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16820 + ... + 17060.

Almost surely, 2^4082540 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 4082540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5407248).

4082540 is an abundant number, since it is smaller than the sum of its proper divisors (6731956).

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

4082540 is a wasteful number, since it uses less digits than its factorization.

4082540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 4082540 is about 2020.5296335367. The cubic root of 4082540 is about 159.8245472558.

The spelling of 4082540 in words is "four million, eighty-two thousand, five hundred forty".