30310252 has 48 divisors (see below), whose sum is σ = 65959488. Its totient is φ = 11888640.

The previous prime is 30310213. The next prime is 30310261. The reversal of 30310252 is 25201303.

It is a super-2 number, since 2×30310252² = 1837422752607008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16752 + ... + 18472.

It is an arithmetic number, because the mean of its divisors is an integer number (1374156).

Almost surely, 2^30310252 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 30310252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32979744).

30310252 is an abundant number, since it is smaller than the sum of its proper divisors (35649236).

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

30310252 is a wasteful number, since it uses less digits than its factorization.

30310252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30310252 is about 5505.4747297576. The cubic root of 30310252 is about 311.7907181864.

Adding to 30310252 its reverse (25201303), we get a palindrome (55511555).

The spelling of 30310252 in words is "thirty million, three hundred ten thousand, two hundred fifty-two".