5781320 has 32 divisors (see below), whose sum is σ = 13694400. Its totient is φ = 2190528.

The previous prime is 5781319. The next prime is 5781323. The reversal of 5781320 is 231875.

It is a self number, because there is not a number n which added to its sum of digits gives 5781320.

It is not an unprimeable number, because it can be changed into a prime (5781323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3044 + ... + 4563.

It is an arithmetic number, because the mean of its divisors is an integer number (427950).

Almost surely, 2^5781320 is an apocalyptic number.

It is an amenable number.

5781320 is an abundant number, since it is smaller than the sum of its proper divisors (7913080).

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

5781320 is a wasteful number, since it uses less digits than its factorization.

5781320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637 (or 7633 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 5781320 is about 2404.4375641717. The cubic root of 5781320 is about 179.4770831718.

The spelling of 5781320 in words is "five million, seven hundred eighty-one thousand, three hundred twenty".