305014220 has 72 divisors (see below), whose sum is σ = 784370160. Its totient is φ = 99066240.

The previous prime is 305014207. The next prime is 305014223. The reversal of 305014220 is 22410503.

It is not an unprimeable number, because it can be changed into a prime (305014223) 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 23 ways as a sum of consecutive naturals, for example, 10430 + ... + 26810.

It is an arithmetic number, because the mean of its divisors is an integer number (10894030).

Almost surely, 2^305014220 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 305014220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392185080).

305014220 is an abundant number, since it is smaller than the sum of its proper divisors (479355940).

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

305014220 is a wasteful number, since it uses less digits than its factorization.

305014220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16423 (or 16414 counting only the distinct ones).

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

The square root of 305014220 is about 17464.6563092435. The cubic root of 305014220 is about 673.1420106903.

Adding to 305014220 its reverse (22410503), we get a palindrome (327424723).

The spelling of 305014220 in words is "three hundred five million, fourteen thousand, two hundred twenty".