2648281 has 4 divisors (see below), whose sum is σ = 2680272. Its totient is φ = 2616292.

The previous prime is 2648279. The next prime is 2648287. The reversal of 2648281 is 1828462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2648281 - 2¹ = 2648279 is a prime.

It is a super-2 number, since 2×2648281² = 14026784509922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2648287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15871 + ... + 16036.

It is an arithmetic number, because the mean of its divisors is an integer number (670068).

2^2648281 is an apocalyptic number.

It is an amenable number.

2648281 is a deficient number, since it is larger than the sum of its proper divisors (31991).

2648281 is an equidigital number, since it uses as much as digits as its factorization.

2648281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31990.

The product of its digits is 6144, while the sum is 31.

The square root of 2648281 is about 1627.3539873058. The cubic root of 2648281 is about 138.3528218862.

The spelling of 2648281 in words is "two million, six hundred forty-eight thousand, two hundred eighty-one".