4088840 has 64 divisors (see below), whose sum is σ = 11145600. Its totient is φ = 1317888.

The previous prime is 4088839. The next prime is 4088849. The reversal of 4088840 is 488804.

It is a super-2 number, since 2×4088840² = 33437225091200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4088797 and 4088806.

It is not an unprimeable number, because it can be changed into a prime (4088849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4331 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (174150).

Almost surely, 2^4088840 is an apocalyptic number.

4088840 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 4088840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5572800).

4088840 is an abundant number, since it is smaller than the sum of its proper divisors (7056760).

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

4088840 is a wasteful number, since it uses less digits than its factorization.

4088840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 4088840 is about 2022.0880297356. The cubic root of 4088840 is about 159.9067164575.

The spelling of 4088840 in words is "four million, eighty-eight thousand, eight hundred forty".