5544220 has 72 divisors (see below), whose sum is σ = 13406400. Its totient is φ = 1921920.

The previous prime is 5544179. The next prime is 5544221. The reversal of 5544220 is 224455.

5544220 = T₂₄₂ + T₂₄₃ + ... + T₃₆₁.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 5544191 and 5544200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5544221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70141 + ... + 70219.

It is an arithmetic number, because the mean of its divisors is an integer number (186200).

Almost surely, 2^5544220 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 5544220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6703200).

5544220 is an abundant number, since it is smaller than the sum of its proper divisors (7862180).

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

5544220 is a wasteful number, since it uses less digits than its factorization.

5544220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 5544220 is about 2354.6167416376. The cubic root of 5544220 is about 176.9892212573.

Adding to 5544220 its reverse (224455), we get a palindrome (5768675).

It can be divided in two parts, 554 and 4220, that added together give a palindrome (4774).

The spelling of 5544220 in words is "five million, five hundred forty-four thousand, two hundred twenty".