302039042 has 6 divisors (see below), whose sum is σ = 453095433. Its totient is φ = 151007232.

The previous prime is 302039011. The next prime is 302039047. The reversal of 302039042 is 240930203.

It can be written as a sum of positive squares in 2 ways, for example, as 270240721 + 31798321 = 16439^2 + 5639^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12289.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302038999 and 302039017.

It is not an unprimeable number, because it can be changed into a prime (302039047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18434 + ... + 30722.

Almost surely, 2^302039042 is an apocalyptic number.

302039042 is a deficient number, since it is larger than the sum of its proper divisors (151056391).

302039042 is an frugal number, since it uses more digits than its factorization.

302039042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24580 (or 12291 counting only the distinct ones).

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

The square root of 302039042 is about 17379.2704680030. The cubic root of 302039042 is about 670.9461956098.

Adding to 302039042 its reverse (240930203), we get a palindrome (542969245).

The spelling of 302039042 in words is "three hundred two million, thirty-nine thousand, forty-two".