4078081 has 8 divisors (see below), whose sum is σ = 4811264. Its totient is φ = 3382560.

The previous prime is 4078073. The next prime is 4078099. The reversal of 4078081 is 1808704.

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 4078081 - 2³ = 4078073 is a prime.

It is a super-2 number, since 2×4078081² = 33261489285122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4078031) 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, 9180 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (601408).

Almost surely, 2^4078081 is an apocalyptic number.

It is an amenable number.

4078081 is a deficient number, since it is larger than the sum of its proper divisors (733183).

4078081 is a wasteful number, since it uses less digits than its factorization.

4078081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18831.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 4078081 is about 2019.4259085195. The cubic root of 4078081 is about 159.7663386184.

The spelling of 4078081 in words is "four million, seventy-eight thousand, eighty-one".