4052291 has 4 divisors (see below), whose sum is σ = 4118784. Its totient is φ = 3985800.

The previous prime is 4052261. The next prime is 4052299. The reversal of 4052291 is 1922504.

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

It is a cyclic number.

It is not a de Polignac number, because 4052291 - 2¹⁴ = 4035907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4052299) 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, 33155 + ... + 33276.

It is an arithmetic number, because the mean of its divisors is an integer number (1029696).

Almost surely, 2^4052291 is an apocalyptic number.

4052291 is a deficient number, since it is larger than the sum of its proper divisors (66493).

4052291 is an equidigital number, since it uses as much as digits as its factorization.

4052291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66492.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4052291 is about 2013.0303028022. The cubic root of 4052291 is about 159.4288358943.

Adding to 4052291 its reverse (1922504), we get a palindrome (5974795).

The spelling of 4052291 in words is "four million, fifty-two thousand, two hundred ninety-one".