722240413 has 4 divisors (see below), whose sum is σ = 723133980. Its totient is φ = 721346848.

The previous prime is 722240401. The next prime is 722240419. The reversal of 722240413 is 314042227.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 514246329 + 207994084 = 22677^2 + 14422^2 .

It is a cyclic number.

It is not a de Polignac number, because 722240413 - 2²⁵ = 688685981 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 (722240419) 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, 445570 + ... + 447187.

It is an arithmetic number, because the mean of its divisors is an integer number (180783495).

Almost surely, 2^722240413 is an apocalyptic number.

It is an amenable number.

722240413 is a deficient number, since it is larger than the sum of its proper divisors (893567).

722240413 is an equidigital number, since it uses as much as digits as its factorization.

722240413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893566.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 722240413 is about 26874.5309354415. The cubic root of 722240413 is about 897.2096346301.

The spelling of 722240413 in words is "seven hundred twenty-two million, two hundred forty thousand, four hundred thirteen".