7280281 has 4 divisors (see below), whose sum is σ = 7313152. Its totient is φ = 7247412.

The previous prime is 7280279. The next prime is 7280291. The reversal of 7280281 is 1820827.

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 7280281 - 2¹ = 7280279 is a prime.

It is a super-2 number, since 2×7280281² = 106004982877922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7280291) 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 3 ways as a sum of consecutive naturals, for example, 16101 + ... + 16546.

It is an arithmetic number, because the mean of its divisors is an integer number (1828288).

Almost surely, 2^7280281 is an apocalyptic number.

It is an amenable number.

7280281 is a deficient number, since it is larger than the sum of its proper divisors (32871).

7280281 is a wasteful number, since it uses less digits than its factorization.

7280281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32870.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 7280281 is about 2698.1995849084. The cubic root of 7280281 is about 193.8129152597.

The spelling of 7280281 in words is "seven million, two hundred eighty thousand, two hundred eighty-one".