252322330 has 128 divisors (see below), whose sum is σ = 557383680. Its totient is φ = 81285120.

The previous prime is 252322327. The next prime is 252322331. The reversal of 252322330 is 33223252.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (252322331) 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 63 ways as a sum of consecutive naturals, for example, 1986727 + ... + 1986853.

It is an arithmetic number, because the mean of its divisors is an integer number (4354560).

Almost surely, 2^252322330 is an apocalyptic number.

252322330 is an abundant number, since it is smaller than the sum of its proper divisors (305061350).

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

252322330 is a wasteful number, since it uses less digits than its factorization.

252322330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 252322330 is about 15884.6570627131. The cubic root of 252322330 is about 631.9051508704.

Adding to 252322330 its reverse (33223252), we get a palindrome (285545582).

The spelling of 252322330 in words is "two hundred fifty-two million, three hundred twenty-two thousand, three hundred thirty".