4000052 has 24 divisors (see below), whose sum is σ = 8042496. Its totient is φ = 1705248.

The previous prime is 4000043. The next prime is 4000063. The reversal of 4000052 is 2500004.

It is an Ulam number.

4000052 is a modest number, since divided by 52 gives 4 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3999997 and 4000042.

It is a congruent number.

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, 10253 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (335104).

Almost surely, 2^4000052 is an apocalyptic number.

It is an amenable number.

4000052 is an abundant number, since it is smaller than the sum of its proper divisors (4042444).

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

4000052 is a wasteful number, since it uses less digits than its factorization.

4000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 4000052 is about 2000.0129999578. The cubic root of 4000052 is about 158.7407930676.

Adding to 4000052 its reverse (2500004), we get a palindrome (6500056).

The spelling of 4000052 in words is "four million, fifty-two", and thus it is an aban number and an eban number.