5581380 has 96 divisors (see below), whose sum is σ = 18176256. Its totient is φ = 1253376.

The previous prime is 5581379. The next prime is 5581393. The reversal of 5581380 is 831855.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40672 + ... + 40808.

It is an arithmetic number, because the mean of its divisors is an integer number (189336).

Almost surely, 2^5581380 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 5581380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9088128).

5581380 is an abundant number, since it is smaller than the sum of its proper divisors (12594876).

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

5581380 is a wasteful number, since it uses less digits than its factorization.

5581380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 5581380 is about 2362.4944444379. The cubic root of 5581380 is about 177.3837630835.

The spelling of 5581380 in words is "five million, five hundred eighty-one thousand, three hundred eighty".