4394081 has 4 divisors (see below), whose sum is σ = 4585152. Its totient is φ = 4203012.

The previous prime is 4394063. The next prime is 4394099. The reversal of 4394081 is 1804934.

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 an interprime number because it is at equal distance from previous prime (4394063) and next prime (4394099).

It is a cyclic number.

It is not a de Polignac number, because 4394081 - 2¹⁴ = 4377697 is a prime.

It is a super-2 number, since 2×4394081² = 38615895669122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394021) 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, 95501 + ... + 95546.

It is an arithmetic number, because the mean of its divisors is an integer number (1146288).

Almost surely, 2^4394081 is an apocalyptic number.

It is an amenable number.

4394081 is a deficient number, since it is larger than the sum of its proper divisors (191071).

4394081 is a wasteful number, since it uses less digits than its factorization.

4394081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191070.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4394081 is about 2096.2063352638. The cubic root of 4394081 is about 163.7907429260.

The spelling of 4394081 in words is "four million, three hundred ninety-four thousand, eighty-one".