4052281 has 4 divisors (see below), whose sum is σ = 4058100. Its totient is φ = 4046464.

The previous prime is 4052261. The next prime is 4052299. The reversal of 4052281 is 1822504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2822400 + 1229881 = 1680^2 + 1109^2 .

It is a cyclic number.

It is not a de Polignac number, because 4052281 - 2⁵ = 4052249 is a prime.

It is a super-2 number, since 2×4052281² = 32841962605922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4052201) 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, 1696 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (1014525).

Almost surely, 2^4052281 is an apocalyptic number.

It is an amenable number.

4052281 is a deficient number, since it is larger than the sum of its proper divisors (5819).

4052281 is an equidigital number, since it uses as much as digits as its factorization.

4052281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4052281 is about 2013.0278189831. The cubic root of 4052281 is about 159.4287047512.

Adding to 4052281 its reverse (1822504), we get a palindrome (5874785).

The spelling of 4052281 in words is "four million, fifty-two thousand, two hundred eighty-one".