4049009 has 16 divisors (see below), whose sum is σ = 4561920. Its totient is φ = 3575040.

The previous prime is 4048991. The next prime is 4049029. The reversal of 4049009 is 9009404.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4049009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4049029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21104 + ... + 21294.

It is an arithmetic number, because the mean of its divisors is an integer number (285120).

Almost surely, 2^4049009 is an apocalyptic number.

It is an amenable number.

4049009 is a deficient number, since it is larger than the sum of its proper divisors (512911).

4049009 is a wasteful number, since it uses less digits than its factorization.

4049009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 4049009 is about 2012.2149487567. The cubic root of 4049009 is about 159.3857831484.

The spelling of 4049009 in words is "four million, forty-nine thousand, nine".