4252409 has 8 divisors (see below), whose sum is σ = 5115840. Its totient is φ = 3452976.

The previous prime is 4252393. The next prime is 4252421. The reversal of 4252409 is 9042524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4252409 - 2⁴ = 4252393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4252439) 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 7 ways as a sum of consecutive naturals, for example, 15854 + ... + 16119.

It is an arithmetic number, because the mean of its divisors is an integer number (639480).

Almost surely, 2^4252409 is an apocalyptic number.

It is an amenable number.

4252409 is a deficient number, since it is larger than the sum of its proper divisors (863431).

4252409 is a wasteful number, since it uses less digits than its factorization.

4252409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31999.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4252409 is about 2062.1369983587. The cubic root of 4252409 is about 162.0111890864.

The spelling of 4252409 in words is "four million, two hundred fifty-two thousand, four hundred nine".