4013520242 has 16 divisors (see below), whose sum is σ = 6392698200. Its totient is φ = 1883298048.

The previous prime is 4013520223. The next prime is 4013520289. The reversal of 4013520242 is 2420253104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3814174081 + 199346161 = 61759^2 + 14119^2 .

It is a super-2 number, since 2×4013520242² = 32216689465887477128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157253 + ... + 180984.

Almost surely, 2^4013520242 is an apocalyptic number.

4013520242 is a deficient number, since it is larger than the sum of its proper divisors (2379177958).

4013520242 is a wasteful number, since it uses less digits than its factorization.

4013520242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338605.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4013520242 is about 63352.3499327373. The cubic root of 4013520242 is about 1589.1875445244.

Adding to 4013520242 its reverse (2420253104), we get a palindrome (6433773346).

The spelling of 4013520242 in words is "four billion, thirteen million, five hundred twenty thousand, two hundred forty-two".