5442021 has 24 divisors (see below), whose sum is σ = 8544536. Its totient is φ = 3317760.

The previous prime is 5442011. The next prime is 5442049. The reversal of 5442021 is 1202445.

It can be written as a sum of positive squares in 4 ways, for example, as 202500 + 5239521 = 450^2 + 2289^2 .

It is not a de Polignac number, because 5442021 - 2¹⁰ = 5440997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5441985 and 5442003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5442011) 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, 22461 + ... + 22701.

Almost surely, 2^5442021 is an apocalyptic number.

It is an amenable number.

5442021 is a deficient number, since it is larger than the sum of its proper divisors (3102515).

5442021 is a wasteful number, since it uses less digits than its factorization.

5442021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 450 counting only the distinct ones).

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

The square root of 5442021 is about 2332.8139660076. The cubic root of 5442021 is about 175.8949635839.

Adding to 5442021 its reverse (1202445), we get a palindrome (6644466).

The spelling of 5442021 in words is "five million, four hundred forty-two thousand, twenty-one".