305025030 has 48 divisors (see below), whose sum is σ = 795225600. Its totient is φ = 81118464.

The previous prime is 305024981. The next prime is 305025037. The reversal of 305025030 is 30520503.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 305024994 and 305025012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305025037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30046 + ... + 38894.

It is an arithmetic number, because the mean of its divisors is an integer number (16567200).

Almost surely, 2^305025030 is an apocalyptic number.

305025030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

305025030 is an abundant number, since it is smaller than the sum of its proper divisors (490200570).

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

305025030 is a wasteful number, since it uses less digits than its factorization.

305025030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9245 (or 9242 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 305025030 is about 17464.9657886868. The cubic root of 305025030 is about 673.1499628651.

Adding to 305025030 its reverse (30520503), we get a palindrome (335545533).

The spelling of 305025030 in words is "three hundred five million, twenty-five thousand, thirty".