303020345 has 8 divisors (see below), whose sum is σ = 370485576. Its totient is φ = 237842176.

The previous prime is 303020339. The next prime is 303020353. The reversal of 303020345 is 543020303.

It can be written as a sum of positive squares in 4 ways, for example, as 36808489 + 266211856 = 6067^2 + 16316^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 303020345 - 2⁶ = 303020281 is a prime.

It is a Duffinian number.

It is a Curzon 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, 571472 + ... + 572001.

It is an arithmetic number, because the mean of its divisors is an integer number (46310697).

Almost surely, 2^303020345 is an apocalyptic number.

It is an amenable number.

303020345 is a deficient number, since it is larger than the sum of its proper divisors (67465231).

303020345 is a wasteful number, since it uses less digits than its factorization.

303020345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143531.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 303020345 is about 17407.4795705754. The cubic root of 303020345 is about 671.6720286693.

Adding to 303020345 its reverse (543020303), we get a palindrome (846040648).

The spelling of 303020345 in words is "three hundred three million, twenty thousand, three hundred forty-five".