3020281 has 12 divisors (see below), whose sum is σ = 3364900. Its totient is φ = 2708640.

The previous prime is 3020279. The next prime is 3020309. The reversal of 3020281 is 1820203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 511225 = 1584^2 + 715^2 .

It is not a de Polignac number, because 3020281 - 2¹ = 3020279 is a prime.

It is a super-2 number, since 2×3020281² = 18244194637922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3020201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13075 + ... + 13303.

Almost surely, 2^3020281 is an apocalyptic number.

It is an amenable number.

3020281 is a deficient number, since it is larger than the sum of its proper divisors (344619).

3020281 is a wasteful number, since it uses less digits than its factorization.

3020281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3020281 is about 1737.8955664826. The cubic root of 3020281 is about 144.5492303211.

Adding to 3020281 its reverse (1820203), we get a palindrome (4840484).

The spelling of 3020281 in words is "three million, twenty thousand, two hundred eighty-one".