4020552 has 48 divisors (see below), whose sum is σ = 11466000. Its totient is φ = 1269216.

The previous prime is 4020529. The next prime is 4020563. The reversal of 4020552 is 2550204.

4020552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102 + ... + 2837.

It is an arithmetic number, because the mean of its divisors is an integer number (238875).

Almost surely, 2^4020552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5733000).

4020552 is an abundant number, since it is smaller than the sum of its proper divisors (7445448).

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

4020552 is a wasteful number, since it uses less digits than its factorization.

4020552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2963 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4020552 is about 2005.1314171395. The cubic root of 4020552 is about 159.0115097874.

Adding to 4020552 its reverse (2550204), we get a palindrome (6570756).

The spelling of 4020552 in words is "four million, twenty thousand, five hundred fifty-two".