303444020 has 24 divisors (see below), whose sum is σ = 695163168. Its totient is φ = 110343200.

The previous prime is 303444017. The next prime is 303444047. The reversal of 303444020 is 20444303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 303443983 and 303444001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689426 + ... + 689865.

It is an arithmetic number, because the mean of its divisors is an integer number (28965132).

Almost surely, 2^303444020 is an apocalyptic number.

It is an amenable number.

303444020 is an abundant number, since it is smaller than the sum of its proper divisors (391719148).

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

303444020 is a wasteful number, since it uses less digits than its factorization.

303444020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379311 (or 1379309 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 303444020 is about 17419.6446576846. The cubic root of 303444020 is about 671.9849208871.

Adding to 303444020 its reverse (20444303), we get a palindrome (323888323).

The spelling of 303444020 in words is "three hundred three million, four hundred forty-four thousand, twenty".