4394181 has 8 divisors (see below), whose sum is σ = 6391584. Its totient is φ = 2663120.

The previous prime is 4394123. The next prime is 4394183. The reversal of 4394181 is 1814934.

It is a happy number.

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 4394181 - 2¹¹ = 4392133 is a prime.

It is a super-2 number, since 2×4394181² = 38617653321522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394183) 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, 66546 + ... + 66611.

It is an arithmetic number, because the mean of its divisors is an integer number (798948).

Almost surely, 2^4394181 is an apocalyptic number.

It is an amenable number.

4394181 is a deficient number, since it is larger than the sum of its proper divisors (1997403).

4394181 is a wasteful number, since it uses less digits than its factorization.

4394181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133171.

The product of its digits is 3456, while the sum is 30.

The square root of 4394181 is about 2096.2301877418. The cubic root of 4394181 is about 163.7919854270.

The spelling of 4394181 in words is "four million, three hundred ninety-four thousand, one hundred eighty-one".