305020000 has 120 divisors (see below), whose sum is σ = 762843312. Its totient is φ = 120000000.

The previous prime is 305019991. The next prime is 305020013. The reversal of 305020000 is 20503.

305020000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2019925 + ... + 2020075.

Almost surely, 2^305020000 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 305020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381421656).

305020000 is an abundant number, since it is smaller than the sum of its proper divisors (457823312).

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

305020000 is a wasteful number, since it uses less digits than its factorization.

305020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 305020000 is about 17464.8217855207. The cubic root of 305020000 is about 673.1462626629.

Adding to 305020000 its reverse (20503), we get a palindrome (305040503).

The spelling of 305020000 in words is "three hundred five million, twenty thousand".