4013524 has 6 divisors (see below), whose sum is σ = 7023674. Its totient is φ = 2006760.

The previous prime is 4013521. The next prime is 4013543. The reversal of 4013524 is 4253104.

It can be written as a sum of positive squares in only one way, i.e., 3732624 + 280900 = 1932^2 + 530^2 .

It is a super-2 number, since 2×4013524² = 32216749797152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501687 + ... + 501694.

Almost surely, 2^4013524 is an apocalyptic number.

It is an amenable number.

4013524 is a deficient number, since it is larger than the sum of its proper divisors (3010150).

4013524 is a wasteful number, since it uses less digits than its factorization.

4013524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003385 (or 1003383 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4013524 is about 2003.3781470307. The cubic root of 4013524 is about 158.9188040528.

Adding to 4013524 its reverse (4253104), we get a palindrome (8266628).

The spelling of 4013524 in words is "four million, thirteen thousand, five hundred twenty-four".