4009249 has 2 divisors, whose sum is σ = 4009250. Its totient is φ = 4009248.

The previous prime is 4009237. The next prime is 4009307. The reversal of 4009249 is 9429004.

4009249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2235025 + 1774224 = 1495^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 4009249 - 2¹⁵ = 3976481 is a prime.

It is a super-3 number, since 3×4009249³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4009219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2004624 + 2004625.

It is an arithmetic number, because the mean of its divisors is an integer number (2004625).

Almost surely, 2^4009249 is an apocalyptic number.

It is an amenable number.

4009249 is a deficient number, since it is larger than the sum of its proper divisors (1).

4009249 is an equidigital number, since it uses as much as digits as its factorization.

4009249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 4009249 is about 2002.3109149181. The cubic root of 4009249 is about 158.8623599534.

The spelling of 4009249 in words is "four million, nine thousand, two hundred forty-nine".