300421220 has 72 divisors (see below), whose sum is σ = 709824192. Its totient is φ = 106666560.

The previous prime is 300421211. The next prime is 300421243. The reversal of 300421220 is 22124003.

It is a junction number, because it is equal to n+sod(n) for n = 300421195 and 300421204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102617 + ... + 105503.

Almost surely, 2^300421220 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 300421220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354912096).

300421220 is an abundant number, since it is smaller than the sum of its proper divisors (409402972).

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

300421220 is a wasteful number, since it uses less digits than its factorization.

300421220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961 (or 2948 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 300421220 is about 17332.6633844888. The cubic root of 300421220 is about 669.7461130576.

Adding to 300421220 its reverse (22124003), we get a palindrome (322545223).

The spelling of 300421220 in words is "three hundred million, four hundred twenty-one thousand, two hundred twenty".