5340440221 has 4 divisors (see below), whose sum is σ = 5420148352. Its totient is φ = 5260732092.

The previous prime is 5340440191. The next prime is 5340440227. The reversal of 5340440221 is 1220440435.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5340440221 - 2⁷ = 5340440093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5340440227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39853965 + ... + 39854098.

It is an arithmetic number, because the mean of its divisors is an integer number (1355037088).

Almost surely, 2^5340440221 is an apocalyptic number.

It is an amenable number.

5340440221 is a deficient number, since it is larger than the sum of its proper divisors (79708131).

5340440221 is an equidigital number, since it uses as much as digits as its factorization.

5340440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79708130.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 5340440221 is about 73078.3156688768. The cubic root of 5340440221 is about 1747.9366397980.

Adding to 5340440221 its reverse (1220440435), we get a palindrome (6560880656).

The spelling of 5340440221 in words is "five billion, three hundred forty million, four hundred forty thousand, two hundred twenty-one".