303042 has 16 divisors (see below), whose sum is σ = 641952. Its totient is φ = 95040.

The previous prime is 303029. The next prime is 303049. The reversal of 303042 is 240303.

It is not an unprimeable number, because it can be changed into a prime (303049) by changing a digit.

303042 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384 + ... + 1587.

It is an arithmetic number, because the mean of its divisors is an integer number (40122).

2³⁰³⁰⁴² is an apocalyptic number.

303042 is an abundant number, since it is smaller than the sum of its proper divisors (338910).

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

303042 is a wasteful number, since it uses less digits than its factorization.

303042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 303042 is about 550.4925067610. The cubic root of 303042 is about 67.1688028378.

Adding to 303042 its reverse (240303), we get a palindrome (543345).

It can be divided in two parts, 3030 and 42, that multiplied together give a triangular number (127260 = T₅₀₄).

The spelling of 303042 in words is "three hundred three thousand, forty-two", and thus it is an iban number.