726345122 has 4 divisors (see below), whose sum is σ = 1089517686. Its totient is φ = 363172560.

The previous prime is 726345073. The next prime is 726345127. The reversal of 726345122 is 221543627.

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

It can be written as a sum of positive squares in only one way, i.e., 426050881 + 300294241 = 20641^2 + 17329^2 .

It is not an unprimeable number, because it can be changed into a prime (726345127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181586279 + ... + 181586282.

Almost surely, 2^726345122 is an apocalyptic number.

726345122 is a deficient number, since it is larger than the sum of its proper divisors (363172564).

726345122 is a wasteful number, since it uses less digits than its factorization.

726345122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363172563.

The product of its digits is 20160, while the sum is 32.

The square root of 726345122 is about 26950.7907490671. The cubic root of 726345122 is about 898.9061286468.

Adding to 726345122 its reverse (221543627), we get a palindrome (947888749).

The spelling of 726345122 in words is "seven hundred twenty-six million, three hundred forty-five thousand, one hundred twenty-two".