4078018 has 8 divisors (see below), whose sum is σ = 6990912. Its totient is φ = 1747716.

The previous prime is 4078013. The next prime is 4078031. The reversal of 4078018 is 8108704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4078013) 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, 145630 + ... + 145657.

It is an arithmetic number, because the mean of its divisors is an integer number (873864).

Almost surely, 2^4078018 is an apocalyptic number.

4078018 is a deficient number, since it is larger than the sum of its proper divisors (2912894).

4078018 is a wasteful number, since it uses less digits than its factorization.

4078018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291296.

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

The square root of 4078018 is about 2019.4103099667. The cubic root of 4078018 is about 159.7655159004.

The spelling of 4078018 in words is "four million, seventy-eight thousand, eighteen".