4250909 has 4 divisors (see below), whose sum is σ = 4577916. Its totient is φ = 3923904.

The previous prime is 4250903. The next prime is 4250923. The reversal of 4250909 is 9090524.

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 931225 + 3319684 = 965^2 + 1822^2 .

It is a cyclic number.

It is not a de Polignac number, because 4250909 - 2¹⁶ = 4185373 is a prime.

It is a Duffinian number.

4250909 is a modest number, since divided by 909 gives 425 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4250903) 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 in 3 ways as a sum of consecutive naturals, for example, 163484 + ... + 163509.

It is an arithmetic number, because the mean of its divisors is an integer number (1144479).

Almost surely, 2^4250909 is an apocalyptic number.

It is an amenable number.

4250909 is a deficient number, since it is larger than the sum of its proper divisors (327007).

4250909 is a wasteful number, since it uses less digits than its factorization.

4250909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327006.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 4250909 is about 2061.7732659049. The cubic root of 4250909 is about 161.9921375039.

The spelling of 4250909 in words is "four million, two hundred fifty thousand, nine hundred nine".