4081524 has 12 divisors (see below), whose sum is σ = 9523584. Its totient is φ = 1360504.

The previous prime is 4081501. The next prime is 4081541. The reversal of 4081524 is 4251804.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4081494 and 4081503.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 170052 + ... + 170075.

It is an arithmetic number, because the mean of its divisors is an integer number (793632).

Almost surely, 2^4081524 is an apocalyptic number.

It is an amenable number.

4081524 is an abundant number, since it is smaller than the sum of its proper divisors (5442060).

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

4081524 is a wasteful number, since it uses less digits than its factorization.

4081524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340134 (or 340132 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 4081524 is about 2020.2781986647. The cubic root of 4081524 is about 159.8112879276.

Adding to 4081524 its product of nonzero digits (1280), we get a palindrome (4082804).

It can be divided in two parts, 408152 and 4, that added together give a triangular number (408156 = T₉₀₃).

The spelling of 4081524 in words is "four million, eighty-one thousand, five hundred twenty-four".