30252306 has 48 divisors (see below), whose sum is σ = 72049824. Its totient is φ = 8438976.

The previous prime is 30252281. The next prime is 30252317. The reversal of 30252306 is 60325203.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11446 + ... + 13838.

It is an arithmetic number, because the mean of its divisors is an integer number (1501038).

Almost surely, 2^30252306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30252306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36024912).

30252306 is an abundant number, since it is smaller than the sum of its proper divisors (41797518).

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

30252306 is a wasteful number, since it uses less digits than its factorization.

30252306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30252306 is about 5500.2096323686. The cubic root of 30252306 is about 311.5919015123.

Adding to 30252306 its reverse (60325203), we get a palindrome (90577509).

The spelling of 30252306 in words is "thirty million, two hundred fifty-two thousand, three hundred six".