252020442 has 8 divisors (see below), whose sum is σ = 504040896. Its totient is φ = 84006812.

The previous prime is 252020429. The next prime is 252020443. The reversal of 252020442 is 244020252.

252020442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

252020442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (252020443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21001698 + ... + 21001709.

It is an arithmetic number, because the mean of its divisors is an integer number (63005112).

Almost surely, 2^252020442 is an apocalyptic number.

252020442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252020442 is a wasteful number, since it uses less digits than its factorization.

252020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42003412.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 252020442 is about 15875.1517158105. The cubic root of 252020442 is about 631.6530385397.

Adding to 252020442 its reverse (244020252), we get a palindrome (496040694).

The spelling of 252020442 in words is "two hundred fifty-two million, twenty thousand, four hundred forty-two".