5811280 has 40 divisors (see below), whose sum is σ = 14309352. Its totient is φ = 2187264.

The previous prime is 5811241. The next prime is 5811301. The reversal of 5811280 is 821185.

It can be written as a sum of positive squares in 4 ways, for example, as 685584 + 5125696 = 828^2 + 2264^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777 + ... + 3496.

Almost surely, 2^5811280 is an apocalyptic number.

It is an amenable number.

5811280 is an abundant number, since it is smaller than the sum of its proper divisors (8498072).

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

5811280 is a wasteful number, since it uses less digits than its factorization.

5811280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 5811280 is about 2410.6596607568. The cubic root of 5811280 is about 179.7865783268.

The spelling of 5811280 in words is "five million, eight hundred eleven thousand, two hundred eighty".