5491220 has 48 divisors (see below), whose sum is σ = 13415808. Its totient is φ = 1848960.

The previous prime is 5491219. The next prime is 5491223. The reversal of 5491220 is 221945.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8219 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (279496).

Almost surely, 2^5491220 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 5491220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6707904).

5491220 is an abundant number, since it is smaller than the sum of its proper divisors (7924588).

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

5491220 is a wasteful number, since it uses less digits than its factorization.

5491220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5491220 is about 2343.3352299660. The cubic root of 5491220 is about 176.4234380787.

The spelling of 5491220 in words is "five million, four hundred ninety-one thousand, two hundred twenty".