305102020 has 12 divisors (see below), whose sum is σ = 640714284. Its totient is φ = 122040800.

The previous prime is 305102003. The next prime is 305102023. The reversal of 305102020 is 20201503.

305102020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 229098496 + 76003524 = 15136^2 + 8718^2 .

It is not an unprimeable number, because it can be changed into a prime (305102023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7627531 + ... + 7627570.

It is an arithmetic number, because the mean of its divisors is an integer number (53392857).

Almost surely, 2^305102020 is an apocalyptic number.

It is an amenable number.

305102020 is an abundant number, since it is smaller than the sum of its proper divisors (335612264).

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

305102020 is a wasteful number, since it uses less digits than its factorization.

305102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15255110 (or 15255108 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 305102020 is about 17467.1697764692. The cubic root of 305102020 is about 673.2065936886.

Adding to 305102020 its reverse (20201503), we get a palindrome (325303523).

The spelling of 305102020 in words is "three hundred five million, one hundred two thousand, twenty".