5421280 has 48 divisors (see below), whose sum is σ = 13233024. Its totient is φ = 2096640.

The previous prime is 5421263. The next prime is 5421287. The reversal of 5421280 is 821245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421287) 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, 4414 + ... + 5506.

It is an arithmetic number, because the mean of its divisors is an integer number (275688).

Almost surely, 2^5421280 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 5421280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6616512).

5421280 is an abundant number, since it is smaller than the sum of its proper divisors (7811744).

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

5421280 is a wasteful number, since it uses less digits than its factorization.

5421280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 5421280 is about 2328.3642326749. The cubic root of 5421280 is about 175.6712181480.

The spelling of 5421280 in words is "five million, four hundred twenty-one thousand, two hundred eighty".