303220490 has 8 divisors (see below), whose sum is σ = 545796900. Its totient is φ = 121288192.

The previous prime is 303220457. The next prime is 303220499. The reversal of 303220490 is 94022303.

303220490 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 303212569 + 7921 = 17413^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (303220499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15161015 + ... + 15161034.

Almost surely, 2^303220490 is an apocalyptic number.

303220490 is a deficient number, since it is larger than the sum of its proper divisors (242576410).

303220490 is a wasteful number, since it uses less digits than its factorization.

303220490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30322056.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 303220490 is about 17413.2274435269. The cubic root of 303220490 is about 671.8198759606.

Adding to 303220490 its reverse (94022303), we get a palindrome (397242793).

The spelling of 303220490 in words is "three hundred three million, two hundred twenty thousand, four hundred ninety".