4071540 has 96 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 950400.

The previous prime is 4071539. The next prime is 4071553. The reversal of 4071540 is 451704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20361 + ... + 20559.

It is an arithmetic number, because the mean of its divisors is an integer number (134400).

Almost surely, 2^4071540 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 4071540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6451200).

4071540 is an abundant number, since it is smaller than the sum of its proper divisors (8830860).

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

4071540 is a wasteful number, since it uses less digits than its factorization.

4071540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 4071540 is about 2017.8057389154. The cubic root of 4071540 is about 159.6808743324.

It can be divided in two parts, 40715 and 40, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 4071540 in words is "four million, seventy-one thousand, five hundred forty".