4086920 has 32 divisors (see below), whose sum is σ = 9313920. Its totient is φ = 1613760.

The previous prime is 4086913. The next prime is 4086923. The reversal of 4086920 is 296804.

4086920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4086923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2705 + ... + 3935.

It is an arithmetic number, because the mean of its divisors is an integer number (291060).

Almost surely, 2^4086920 is an apocalyptic number.

4086920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4086920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4656960).

4086920 is an abundant number, since it is smaller than the sum of its proper divisors (5227000).

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

4086920 is a wasteful number, since it uses less digits than its factorization.

4086920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1321 counting only the distinct ones).

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

The square root of 4086920 is about 2021.6132172105. The cubic root of 4086920 is about 159.8816833622.

The spelling of 4086920 in words is "four million, eighty-six thousand, nine hundred twenty".