300020440 has 64 divisors (see below), whose sum is σ = 690120000. Its totient is φ = 117358080.

The previous prime is 300020423. The next prime is 300020459. The reversal of 300020440 is 44020003.

It is a self number, because there is not a number n which added to its sum of digits gives 300020440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422806 + ... + 423514.

It is an arithmetic number, because the mean of its divisors is an integer number (10783125).

Almost surely, 2^300020440 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 300020440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345060000).

300020440 is an abundant number, since it is smaller than the sum of its proper divisors (390099560).

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

300020440 is a wasteful number, since it uses less digits than its factorization.

300020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 300020440 is about 17321.0981176137. The cubic root of 300020440 is about 669.4481533030.

Adding to 300020440 its reverse (44020003), we get a palindrome (344040443).

The spelling of 300020440 in words is "three hundred million, twenty thousand, four hundred forty".