5681808 has 120 divisors (see below), whose sum is σ = 18454176. Its totient is φ = 1612800.

The previous prime is 5681803. The next prime is 5681861. The reversal of 5681808 is 8081865.

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

It is not an unprimeable number, because it can be changed into a prime (5681803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26823 + ... + 27033.

Almost surely, 2^5681808 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 5681808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9227088).

5681808 is an abundant number, since it is smaller than the sum of its proper divisors (12772368).

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

5681808 is a wasteful number, since it uses less digits than its factorization.

5681808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 5681808 is about 2383.6543373568. The cubic root of 5681808 is about 178.4413572868.

The spelling of 5681808 in words is "five million, six hundred eighty-one thousand, eight hundred eight".