4066520 has 16 divisors (see below), whose sum is σ = 9149760. Its totient is φ = 1626592.

The previous prime is 4066507. The next prime is 4066523. The reversal of 4066520 is 256604.

4066520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066523) 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 3 ways as a sum of consecutive naturals, for example, 50792 + ... + 50871.

It is an arithmetic number, because the mean of its divisors is an integer number (571860).

Almost surely, 2^4066520 is an apocalyptic number.

4066520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4066520 is an abundant number, since it is smaller than the sum of its proper divisors (5083240).

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

4066520 is a wasteful number, since it uses less digits than its factorization.

4066520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101674 (or 101670 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 4066520 is about 2016.5614297611. The cubic root of 4066520 is about 159.6152212332.

The spelling of 4066520 in words is "four million, sixty-six thousand, five hundred twenty".