4078820 has 24 divisors (see below), whose sum is σ = 8938944. Its totient is φ = 1560416.

The previous prime is 4078819. The next prime is 4078829. The reversal of 4078820 is 288704.

It is not an unprimeable number, because it can be changed into a prime (4078829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3974 + ... + 4893.

It is an arithmetic number, because the mean of its divisors is an integer number (372456).

Almost surely, 2^4078820 is an apocalyptic number.

It is an amenable number.

4078820 is an abundant number, since it is smaller than the sum of its proper divisors (4860124).

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

4078820 is a wasteful number, since it uses less digits than its factorization.

4078820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8899 (or 8897 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 4078820 is about 2019.6088730247. The cubic root of 4078820 is about 159.7759885978.

The spelling of 4078820 in words is "four million, seventy-eight thousand, eight hundred twenty".