302420039 has 2 divisors, whose sum is σ = 302420040. Its totient is φ = 302420038.

The previous prime is 302419993. The next prime is 302420071. The reversal of 302420039 is 930024203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 302420039 - 2²⁸ = 33984583 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 302419996 and 302420023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302420539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151210019 + 151210020.

It is an arithmetic number, because the mean of its divisors is an integer number (151210020).

Almost surely, 2^302420039 is an apocalyptic number.

302420039 is a deficient number, since it is larger than the sum of its proper divisors (1).

302420039 is an equidigital number, since it uses as much as digits as its factorization.

302420039 is an evil number, because the sum of its binary digits is even.

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

The square root of 302420039 is about 17390.2282618717. The cubic root of 302420039 is about 671.2281912492.

The spelling of 302420039 in words is "three hundred two million, four hundred twenty thousand, thirty-nine".