5641285940 has 48 divisors (see below), whose sum is σ = 12170647440. Its totient is φ = 2195128320.

The previous prime is 5641285927. The next prime is 5641285961. The reversal of 5641285940 is 495821465.

It can be written as a sum of positive squares in 8 ways, for example, as 2491607056 + 3149678884 = 49916^2 + 56122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5641285891 and 5641285900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279716 + ... + 299204.

It is an arithmetic number, because the mean of its divisors is an integer number (253555155).

Almost surely, 2^5641285940 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 5641285940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6085323720).

5641285940 is an abundant number, since it is smaller than the sum of its proper divisors (6529361500).

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

5641285940 is a wasteful number, since it uses less digits than its factorization.

5641285940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19892 (or 19890 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 5641285940 is about 75108.4944596815. The cubic root of 5641285940 is about 1780.1613644058.

The spelling of 5641285940 in words is "five billion, six hundred forty-one million, two hundred eighty-five thousand, nine hundred forty".