303920042 has 4 divisors (see below), whose sum is σ = 455880066. Its totient is φ = 151960020.

The previous prime is 303920041. The next prime is 303920047. The reversal of 303920042 is 240029303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215766721 + 88153321 = 14689^2 + 9389^2 .

It is a super-3 number, since 3×303920042³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (303920041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75980009 + ... + 75980012.

Almost surely, 2^303920042 is an apocalyptic number.

303920042 is a deficient number, since it is larger than the sum of its proper divisors (151960024).

303920042 is a wasteful number, since it uses less digits than its factorization.

303920042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151960023.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 303920042 is about 17433.3026704638. The cubic root of 303920042 is about 672.3361251315.

Adding to 303920042 its reverse (240029303), we get a palindrome (543949345).

The spelling of 303920042 in words is "three hundred three million, nine hundred twenty thousand, forty-two".