30221450 has 48 divisors (see below), whose sum is σ = 65114880. Its totient is φ = 10221120.

The previous prime is 30221447. The next prime is 30221453. The reversal of 30221450 is 5412203.

It is an interprime number because it is at equal distance from previous prime (30221447) and next prime (30221453).

It is not an unprimeable number, because it can be changed into a prime (30221453) 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 23 ways as a sum of consecutive naturals, for example, 27104 + ... + 28196.

It is an arithmetic number, because the mean of its divisors is an integer number (1356560).

Almost surely, 2^30221450 is an apocalyptic number.

30221450 is an abundant number, since it is smaller than the sum of its proper divisors (34893430).

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

30221450 is a wasteful number, since it uses less digits than its factorization.

30221450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30221450 is about 5497.4039327668. The cubic root of 30221450 is about 311.4859288706.

Adding to 30221450 its reverse (5412203), we get a palindrome (35633653).

The spelling of 30221450 in words is "thirty million, two hundred twenty-one thousand, four hundred fifty".