5681940 has 48 divisors (see below), whose sum is σ = 17357760. Its totient is φ = 1377280.

The previous prime is 5681939. The next prime is 5681947. The reversal of 5681940 is 491865.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3645 + ... + 4964.

It is an arithmetic number, because the mean of its divisors is an integer number (361620).

Almost surely, 2^5681940 is an apocalyptic number.

It is an amenable number.

5681940 is an abundant number, since it is smaller than the sum of its proper divisors (11675820).

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

5681940 is a wasteful number, since it uses less digits than its factorization.

5681940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632 (or 8630 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 5681940 is about 2383.6820257744. The cubic root of 5681940 is about 178.4427391285.

The spelling of 5681940 in words is "five million, six hundred eighty-one thousand, nine hundred forty".