5281380 has 144 divisors (see below), whose sum is σ = 18009264. Its totient is φ = 1244160.

The previous prime is 5281379. The next prime is 5281403. The reversal of 5281380 is 831825.

5281380 = T₄₁₅ + T₄₁₆ + ... + T₄₆₈.

It is a happy number.

5281380 is a `hidden beast` number, since 5 + 281 + 380 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 589824 + 4691556 = 768^2 + 2166^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86550 + ... + 86610.

Almost surely, 2^5281380 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 5281380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9004632).

5281380 is an abundant number, since it is smaller than the sum of its proper divisors (12727884).

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

5281380 is a wasteful number, since it uses less digits than its factorization.

5281380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 5281380 is about 2298.1253229535. The cubic root of 5281380 is about 174.1469230714.

The spelling of 5281380 in words is "five million, two hundred eighty-one thousand, three hundred eighty".