4000520252 has 12 divisors (see below), whose sum is σ = 7119570360. Its totient is φ = 1966357296.

The previous prime is 4000520233. The next prime is 4000520267. The reversal of 4000520252 is 2520250004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8475443 + ... + 8475914.

It is an arithmetic number, because the mean of its divisors is an integer number (593297530).

Almost surely, 2^4000520252 is an apocalyptic number.

It is an amenable number.

4000520252 is a deficient number, since it is larger than the sum of its proper divisors (3119050108).

4000520252 is a wasteful number, since it uses less digits than its factorization.

4000520252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16951420 (or 16951418 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 4000520252 is about 63249.6660228337. Note that the first 3 decimals coincide. The cubic root of 4000520252 is about 1587.4698696991.

Adding to 4000520252 its reverse (2520250004), we get a palindrome (6520770256).

The spelling of 4000520252 in words is "four billion, five hundred twenty thousand, two hundred fifty-two".