303242142 has 32 divisors (see below), whose sum is σ = 699494400. Its totient is φ = 85844448.

The previous prime is 303242131. The next prime is 303242171. The reversal of 303242142 is 241242303.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28542 + ... + 37697.

It is an arithmetic number, because the mean of its divisors is an integer number (21859200).

Almost surely, 2^303242142 is an apocalyptic number.

303242142 is an abundant number, since it is smaller than the sum of its proper divisors (396252258).

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

303242142 is a wasteful number, since it uses less digits than its factorization.

303242142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66360.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 303242142 is about 17413.8491437132. The cubic root of 303242142 is about 671.8358664122.

Adding to 303242142 its reverse (241242303), we get a palindrome (544484445).

The spelling of 303242142 in words is "three hundred three million, two hundred forty-two thousand, one hundred forty-two".