4056289 has 4 divisors (see below), whose sum is σ = 4060420. Its totient is φ = 4052160.

The previous prime is 4056287. The next prime is 4056359. The reversal of 4056289 is 9826504.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 2274064 = 1335^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056289 - 2¹ = 4056287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4056287) 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, 349 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (1015105).

Almost surely, 2^4056289 is an apocalyptic number.

It is an amenable number.

4056289 is a deficient number, since it is larger than the sum of its proper divisors (4131).

4056289 is a wasteful number, since it uses less digits than its factorization.

4056289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 4056289 is about 2014.0230882490. The cubic root of 4056289 is about 159.4812496179.

The spelling of 4056289 in words is "four million, fifty-six thousand, two hundred eighty-nine".