4003680 has 96 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 1009152.

The previous prime is 4003669. The next prime is 4003697. The reversal of 4003680 is 863004.

4003680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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, 8901 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

Almost surely, 2^4003680 is an apocalyptic number.

4003680 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 4003680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6652800).

4003680 is an abundant number, since it is smaller than the sum of its proper divisors (9301920).

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

4003680 is a wasteful number, since it uses less digits than its factorization.

4003680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4003680 is about 2000.9197884973. The cubic root of 4003680 is about 158.7887705747.

Adding to 4003680 its reverse (863004), we get a palindrome (4866684).

The spelling of 4003680 in words is "four million, three thousand, six hundred eighty".