30220000 has 60 divisors (see below), whose sum is σ = 74394936. Its totient is φ = 12080000.

The previous prime is 30219983. The next prime is 30220007. The reversal of 30220000 is 2203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220007) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 19245 + ... + 20755.

Almost surely, 2^30220000 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 30220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37197468).

30220000 is an abundant number, since it is smaller than the sum of its proper divisors (44174936).

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

30220000 is an equidigital number, since it uses as much as digits as its factorization.

30220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 30220000 is about 5497.2720507539. The cubic root of 30220000 is about 311.4809471792.

Adding to 30220000 its reverse (2203), we get a palindrome (30222203).

It can be divided in two parts, 302 and 20000, that added together give a palindrome (20302).

The spelling of 30220000 in words is "thirty million, two hundred twenty thousand".