252390828 has 72 divisors (see below), whose sum is σ = 618967440. Its totient is φ = 80030720.

The previous prime is 252390781. The next prime is 252390829. The reversal of 252390828 is 828093252.

252390828 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252390828² = 127402260117051168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252390829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 898048 + ... + 898328.

It is an arithmetic number, because the mean of its divisors is an integer number (8596770).

Almost surely, 2^252390828 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 252390828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309483720).

252390828 is an abundant number, since it is smaller than the sum of its proper divisors (366576612).

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

252390828 is a wasteful number, since it uses less digits than its factorization.

252390828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 252390828 is about 15886.8130221262. The cubic root of 252390828 is about 631.9623268416.

It can be divided in two parts, 2523 and 90828, that multiplied together give a square (229159044 = 15138²).

The spelling of 252390828 in words is "two hundred fifty-two million, three hundred ninety thousand, eight hundred twenty-eight".