4183840 has 48 divisors (see below), whose sum is σ = 10039680. Its totient is φ = 1647360.

The previous prime is 4183831. The next prime is 4183841. The reversal of 4183840 is 483814.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4183799 and 4183808.

It is not an unprimeable number, because it can be changed into a prime (4183841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12475 + ... + 12805.

It is an arithmetic number, because the mean of its divisors is an integer number (209160).

Almost surely, 2^4183840 is an apocalyptic number.

4183840 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 4183840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5019840).

4183840 is an abundant number, since it is smaller than the sum of its proper divisors (5855840).

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

4183840 is a wasteful number, since it uses less digits than its factorization.

4183840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 4183840 is about 2045.4437171431. The cubic root of 4183840 is about 161.1356700132.

The spelling of 4183840 in words is "four million, one hundred eighty-three thousand, eight hundred forty".