5691890240 has 56 divisors (see below), whose sum is σ = 13587919992. Its totient is φ = 2271027200.

The previous prime is 5691890203. The next prime is 5691890311. The reversal of 5691890240 is 420981965.

It can be written as a sum of positive squares in 4 ways, for example, as 3676239424 + 2015650816 = 60632^2 + 44896^2 .

It is a super-2 number, since 2×5691890240² = 64795229008414515200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5691890191 and 5691890200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106142 + ... + 150498.

Almost surely, 2^5691890240 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 5691890240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6793959996).

5691890240 is an abundant number, since it is smaller than the sum of its proper divisors (7896029752).

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

5691890240 is a wasteful number, since it uses less digits than its factorization.

5691890240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44775 (or 44765 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 5691890240 is about 75444.6170379305. The cubic root of 5691890240 is about 1785.4684163794.

The spelling of 5691890240 in words is "five billion, six hundred ninety-one million, eight hundred ninety thousand, two hundred forty".