4049909 has 8 divisors (see below), whose sum is σ = 4341120. Its totient is φ = 3768336.

The previous prime is 4049897. The next prime is 4049921. The reversal of 4049909 is 9099404.

It is an interprime number because it is at equal distance from previous prime (4049897) and next prime (4049921).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4049909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529 + ... + 3230.

It is an arithmetic number, because the mean of its divisors is an integer number (542640).

Almost surely, 2^4049909 is an apocalyptic number.

It is an amenable number.

4049909 is a deficient number, since it is larger than the sum of its proper divisors (291211).

4049909 is a wasteful number, since it uses less digits than its factorization.

4049909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 4049909 is about 2012.4385704910. The cubic root of 4049909 is about 159.3975915175.

The spelling of 4049909 in words is "four million, forty-nine thousand, nine hundred nine".