7282281 has 4 divisors (see below), whose sum is σ = 9709712. Its totient is φ = 4854852.

The previous prime is 7282279. The next prime is 7282291. The reversal of 7282281 is 1822827.

It is a happy number.

7282281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 7282281 - 2¹ = 7282279 is a prime.

It is a super-2 number, since 2×7282281² = 106063233125922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7282271) 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, 1213711 + ... + 1213716.

It is an arithmetic number, because the mean of its divisors is an integer number (2427428).

Almost surely, 2^7282281 is an apocalyptic number.

It is an amenable number.

7282281 is a deficient number, since it is larger than the sum of its proper divisors (2427431).

7282281 is a wasteful number, since it uses less digits than its factorization.

7282281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427430.

The product of its digits is 3584, while the sum is 30.

The square root of 7282281 is about 2698.5701769641. The cubic root of 7282281 is about 193.8306613852.

The spelling of 7282281 in words is "seven million, two hundred eighty-two thousand, two hundred eighty-one".