303002020 has 24 divisors (see below), whose sum is σ = 642608568. Its totient is φ = 120000000.

The previous prime is 303002009. The next prime is 303002027. The reversal of 303002020 is 20200303.

It can be written as a sum of positive squares in 4 ways, for example, as 78960996 + 224041024 = 8886^2 + 14968^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 303001988 and 303002006.

It is not an unprimeable number, because it can be changed into a prime (303002027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72981 + ... + 77020.

It is an arithmetic number, because the mean of its divisors is an integer number (26775357).

Almost surely, 2^303002020 is an apocalyptic number.

It is an amenable number.

303002020 is an abundant number, since it is smaller than the sum of its proper divisors (339606548).

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

303002020 is a wasteful number, since it uses less digits than its factorization.

303002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150111 (or 150109 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 303002020 is about 17406.9532084165. The cubic root of 303002020 is about 671.6584887225.

Adding to 303002020 its reverse (20200303), we get a palindrome (323202323).

The spelling of 303002020 in words is "three hundred three million, two thousand, twenty".