5641280 has 84 divisors (see below), whose sum is σ = 14503908. Its totient is φ = 2088960.

The previous prime is 5641277. The next prime is 5641291. The reversal of 5641280 is 821465.

It can be written as a sum of positive squares in 6 ways, for example, as 33856 + 5607424 = 184^2 + 2368^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92450 + ... + 92510.

Almost surely, 2^5641280 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 5641280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7251954).

5641280 is an abundant number, since it is smaller than the sum of its proper divisors (8862628).

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

5641280 is a wasteful number, since it uses less digits than its factorization.

5641280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5641280 is about 2375.1378907339. The cubic root of 5641280 is about 178.0160739598.

The spelling of 5641280 in words is "five million, six hundred forty-one thousand, two hundred eighty".