302444981 has 2 divisors, whose sum is σ = 302444982. Its totient is φ = 302444980.

The previous prime is 302444971. The next prime is 302445037. The reversal of 302444981 is 189444203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250114225 + 52330756 = 15815^2 + 7234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302444981 is a prime.

It is a super-2 number, since 2×302444981² = 182945933064180722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302444971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151222490 + 151222491.

It is an arithmetic number, because the mean of its divisors is an integer number (151222491).

Almost surely, 2^302444981 is an apocalyptic number.

It is an amenable number.

302444981 is a deficient number, since it is larger than the sum of its proper divisors (1).

302444981 is an equidigital number, since it uses as much as digits as its factorization.

302444981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 302444981 is about 17390.9453739583. The cubic root of 302444981 is about 671.2466438550.

The spelling of 302444981 in words is "three hundred two million, four hundred forty-four thousand, nine hundred eighty-one".