4078668 has 54 divisors (see below), whose sum is σ = 10661812. Its totient is φ = 1212640.

The previous prime is 4078667. The next prime is 4078687. The reversal of 4078668 is 8668704.

It is not an unprimeable number, because it can be changed into a prime (4078663) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 76930 + ... + 76982.

Almost surely, 2^4078668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5330906).

4078668 is an abundant number, since it is smaller than the sum of its proper divisors (6583144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4078668 is a wasteful number, since it uses less digits than its factorization.

4078668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 4078668 is about 2019.5712416253. The cubic root of 4078668 is about 159.7740038528.

The spelling of 4078668 in words is "four million, seventy-eight thousand, six hundred sixty-eight".