5991840 has 192 divisors, whose sum is σ = 22377600. Its totient is φ = 1492992.

The previous prime is 5991833. The next prime is 5991841. The reversal of 5991840 is 481995.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5991795 and 5991804.

It is not an unprimeable number, because it can be changed into a prime (5991841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82044 + ... + 82116.

It is an arithmetic number, because the mean of its divisors is an integer number (116550).

Almost surely, 2^5991840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5991840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11188800).

5991840 is an abundant number, since it is smaller than the sum of its proper divisors (16385760).

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

5991840 is a wasteful number, since it uses less digits than its factorization.

5991840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 5991840 is about 2447.8235230506. The cubic root of 5991840 is about 181.6296457776.

The spelling of 5991840 in words is "five million, nine hundred ninety-one thousand, eight hundred forty".