5540220 has 72 divisors (see below), whose sum is σ = 19210464. Its totient is φ = 1266048.

The previous prime is 5540179. The next prime is 5540221. The reversal of 5540220 is 220455.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5540193 and 5540202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 939 + ... + 3458.

It is an arithmetic number, because the mean of its divisors is an integer number (266812).

Almost surely, 2^5540220 is an apocalyptic number.

It is an amenable number.

5540220 is an abundant number, since it is smaller than the sum of its proper divisors (13670244).

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

5540220 is a wasteful number, since it uses less digits than its factorization.

5540220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419 (or 4414 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 5540220 is about 2353.7671932458. The cubic root of 5540220 is about 176.9466467557.

Adding to 5540220 its reverse (220455), we get a palindrome (5760675).

It can be divided in two parts, 5 and 540220, that added together give a square (540225 = 735²).

The spelling of 5540220 in words is "five million, five hundred forty thousand, two hundred twenty".