4018840 has 64 divisors (see below), whose sum is σ = 10690560. Its totient is φ = 1330560.

The previous prime is 4018837. The next prime is 4018843. The reversal of 4018840 is 488104.

4018840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4018837) and next prime (4018843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018843) 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 15 ways as a sum of consecutive naturals, for example, 8449 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (167040).

Almost surely, 2^4018840 is an apocalyptic number.

4018840 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 4018840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5345280).

4018840 is an abundant number, since it is smaller than the sum of its proper divisors (6671720).

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

4018840 is a wasteful number, since it uses less digits than its factorization.

4018840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4018840 is about 2004.7044669976. The cubic root of 4018840 is about 158.9889369041.

The spelling of 4018840 in words is "four million, eighteen thousand, eight hundred forty".