5781744 has 30 divisors (see below), whose sum is σ = 16181256. Its totient is φ = 1927200.

The previous prime is 5781733. The next prime is 5781749. The reversal of 5781744 is 4471875.

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 = 5781699 and 5781708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19932 + ... + 20219.

Almost surely, 2^5781744 is an apocalyptic number.

It is an amenable number.

5781744 is an abundant number, since it is smaller than the sum of its proper divisors (10399512).

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

5781744 is a wasteful number, since it uses less digits than its factorization.

5781744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40165 (or 40156 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 5781744 is about 2404.5257328629. The cubic root of 5781744 is about 179.4814706602.

The spelling of 5781744 in words is "five million, seven hundred eighty-one thousand, seven hundred forty-four".