4249009 has 4 divisors (see below), whose sum is σ = 4264960. Its totient is φ = 4233060.

The previous prime is 4248991. The next prime is 4249067. The reversal of 4249009 is 9009424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4249009 - 2⁵ = 4248977 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4249309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7569 + ... + 8110.

It is an arithmetic number, because the mean of its divisors is an integer number (1066240).

Almost surely, 2^4249009 is an apocalyptic number.

It is an amenable number.

4249009 is a deficient number, since it is larger than the sum of its proper divisors (15951).

4249009 is a wasteful number, since it uses less digits than its factorization.

4249009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15950.

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

The square root of 4249009 is about 2061.3124459916. The cubic root of 4249009 is about 161.9679990644.

The spelling of 4249009 in words is "four million, two hundred forty-nine thousand, nine".