30330252 has 18 divisors (see below), whose sum is σ = 76668228. Its totient is φ = 10110072.

The previous prime is 30330247. The next prime is 30330271. The reversal of 30330252 is 25203303.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421218 + ... + 421289.

It is an arithmetic number, because the mean of its divisors is an integer number (4259346).

Almost surely, 2^30330252 is an apocalyptic number.

It is an amenable number.

30330252 is an abundant number, since it is smaller than the sum of its proper divisors (46337976).

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

30330252 is a wasteful number, since it uses less digits than its factorization.

30330252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842517 (or 842512 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 30330252 is about 5507.2908040161. The cubic root of 30330252 is about 311.8592807233.

Adding to 30330252 its reverse (25203303), we get a palindrome (55533555).

The spelling of 30330252 in words is "thirty million, three hundred thirty thousand, two hundred fifty-two".