4396840 has 64 divisors (see below), whose sum is σ = 11612160. Its totient is φ = 1466880.

The previous prime is 4396831. The next prime is 4396849. The reversal of 4396840 is 486934.

It is an interprime number because it is at equal distance from previous prime (4396831) and next prime (4396849).

It is a junction number, because it is equal to n+sod(n) for n = 4396796 and 4396805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4396849) 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, 11289 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 2^4396840 is an apocalyptic number.

4396840 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 4396840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5806080).

4396840 is an abundant number, since it is smaller than the sum of its proper divisors (7215320).

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

4396840 is a wasteful number, since it uses less digits than its factorization.

4396840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4396840 is about 2096.8643256062. The cubic root of 4396840 is about 163.8250166161.

The spelling of 4396840 in words is "four million, three hundred ninety-six thousand, eight hundred forty".