4020252 has 12 divisors (see below), whose sum is σ = 9380616. Its totient is φ = 1340080.

The previous prime is 4020227. The next prime is 4020257. The reversal of 4020252 is 2520204.

4020252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4020252² = 32324852287008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 167499 + ... + 167522.

It is an arithmetic number, because the mean of its divisors is an integer number (781718).

Almost surely, 2^4020252 is an apocalyptic number.

It is an amenable number.

4020252 is an abundant number, since it is smaller than the sum of its proper divisors (5360364).

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

4020252 is a wasteful number, since it uses less digits than its factorization.

4020252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335028 (or 335026 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 4020252 is about 2005.0566076797. The cubic root of 4020252 is about 159.0075547219.

Adding to 4020252 its reverse (2520204), we get a palindrome (6540456).

The spelling of 4020252 in words is "four million, twenty thousand, two hundred fifty-two".