4393281 has 8 divisors (see below), whose sum is σ = 5953984. Its totient is φ = 2880720.

The previous prime is 4393271. The next prime is 4393283. The reversal of 4393281 is 1823934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4393281 - 2⁶ = 4393217 is a prime.

It is a super-2 number, since 2×4393281² = 38601835889922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4393283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11821 + ... + 12186.

It is an arithmetic number, because the mean of its divisors is an integer number (744248).

Almost surely, 2^4393281 is an apocalyptic number.

It is an amenable number.

4393281 is a deficient number, since it is larger than the sum of its proper divisors (1560703).

4393281 is a wasteful number, since it uses less digits than its factorization.

4393281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24071.

The product of its digits is 5184, while the sum is 30.

The square root of 4393281 is about 2096.0155056678. The cubic root of 4393281 is about 163.7808022393.

The spelling of 4393281 in words is "four million, three hundred ninety-three thousand, two hundred eighty-one".