303400242 has 20 divisors (see below), whose sum is σ = 679841646. Its totient is φ = 101133360.

The previous prime is 303400183. The next prime is 303400261. The reversal of 303400242 is 242004303.

It can be written as a sum of positive squares in only one way, i.e., 268009641 + 35390601 = 16371^2 + 5949^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 936259 + ... + 936582.

Almost surely, 2^303400242 is an apocalyptic number.

303400242 is an abundant number, since it is smaller than the sum of its proper divisors (376441404).

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

303400242 is a wasteful number, since it uses less digits than its factorization.

303400242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872855 (or 1872846 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 303400242 is about 17418.3880425256. The cubic root of 303400242 is about 671.9526034812.

Adding to 303400242 its reverse (242004303), we get a palindrome (545404545).

The spelling of 303400242 in words is "three hundred three million, four hundred thousand, two hundred forty-two".