6243840 has 120 divisors (see below), whose sum is σ = 21703968. Its totient is φ = 1658880.

The previous prime is 6243823. The next prime is 6243859. The reversal of 6243840 is 483426.

6243840 is a `hidden beast` number, since 624 + 38 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22905 + ... + 23175.

Almost surely, 2^6243840 is an apocalyptic number.

6243840 is a gapful number since it is divisible by the number (60) 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 6243840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10851984).

6243840 is an abundant number, since it is smaller than the sum of its proper divisors (15460128).

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

6243840 is a wasteful number, since it uses less digits than its factorization.

6243840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6243840 is about 2498.7676962855. The cubic root of 6243840 is about 184.1410386821.

The spelling of 6243840 in words is "six million, two hundred forty-three thousand, eight hundred forty".