303542343 has 16 divisors (see below), whose sum is σ = 484284640. Its totient is φ = 186795072.

The previous prime is 303542299. The next prime is 303542441. The reversal of 303542343 is 343245303.

It is a happy number.

It is not a de Polignac number, because 303542343 - 2¹⁰ = 303541319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303542143) 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 15 ways as a sum of consecutive naturals, for example, 432046 + ... + 432747.

It is an arithmetic number, because the mean of its divisors is an integer number (30267790).

Almost surely, 2^303542343 is an apocalyptic number.

303542343 is a deficient number, since it is larger than the sum of its proper divisors (180742297).

303542343 is a wasteful number, since it uses less digits than its factorization.

303542343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864815 (or 864809 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 303542343 is about 17422.4666164123. The cubic root of 303542343 is about 672.0574926895.

Adding to 303542343 its product of nonzero digits (12960), we get a palindrome (303555303).

Adding to 303542343 its reverse (343245303), we get a palindrome (646787646).

The spelling of 303542343 in words is "three hundred three million, five hundred forty-two thousand, three hundred forty-three".