4181009 has 8 divisors (see below), whose sum is σ = 4986240. Its totient is φ = 3427776.

The previous prime is 4180987. The next prime is 4181041. The reversal of 4181009 is 9001814.

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-4181009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (4181059) 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, 12824 + ... + 13145.

It is an arithmetic number, because the mean of its divisors is an integer number (623280).

Almost surely, 2^4181009 is an apocalyptic number.

It is an amenable number.

4181009 is a deficient number, since it is larger than the sum of its proper divisors (805231).

4181009 is a wasteful number, since it uses less digits than its factorization.

4181009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25999.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 4181009 is about 2044.7515741527. The cubic root of 4181009 is about 161.0993176024.

The spelling of 4181009 in words is "four million, one hundred eighty-one thousand, nine".