722238541 has 4 divisors (see below), whose sum is σ = 722582784. Its totient is φ = 721894300.

The previous prime is 722238511. The next prime is 722238581. The reversal of 722238541 is 145832227.

It is a happy number.

722238541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 722238541 - 2¹⁷ = 722107469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722238497 and 722238506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722238511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168955 + ... + 173176.

It is an arithmetic number, because the mean of its divisors is an integer number (180645696).

Almost surely, 2^722238541 is an apocalyptic number.

It is an amenable number.

722238541 is a deficient number, since it is larger than the sum of its proper divisors (344243).

722238541 is a wasteful number, since it uses less digits than its factorization.

722238541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344242.

The product of its digits is 26880, while the sum is 34.

The square root of 722238541 is about 26874.4961069040. The cubic root of 722238541 is about 897.2088594598.

The spelling of 722238541 in words is "seven hundred twenty-two million, two hundred thirty-eight thousand, five hundred forty-one".