5404221 has 6 divisors (see below), whose sum is σ = 7806110. Its totient is φ = 3602808.

The previous prime is 5404219. The next prime is 5404229. The reversal of 5404221 is 1224045.

It can be written as a sum of positive squares in only one way, i.e., 5336100 + 68121 = 2310^2 + 261^2 .

It is not a de Polignac number, because 5404221 - 2¹ = 5404219 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5404194 and 5404203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5404229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300226 + ... + 300243.

Almost surely, 2^5404221 is an apocalyptic number.

It is an amenable number.

5404221 is a deficient number, since it is larger than the sum of its proper divisors (2401889).

5404221 is a wasteful number, since it uses less digits than its factorization.

5404221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600475 (or 600472 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 5404221 is about 2324.6980449082. The cubic root of 5404221 is about 175.4867645314.

Adding to 5404221 its reverse (1224045), we get a palindrome (6628266).

It can be divided in two parts, 5404 and 221, that added together give a square (5625 = 75²).

The spelling of 5404221 in words is "five million, four hundred four thousand, two hundred twenty-one".