722512242 has 12 divisors (see below), whose sum is σ = 1565443230. Its totient is φ = 240837408.

The previous prime is 722512213. The next prime is 722512249. The reversal of 722512242 is 242215227.

It can be written as a sum of positive squares in only one way, i.e., 448973721 + 273538521 = 21189^2 + 16539^2 .

It is not an unprimeable number, because it can be changed into a prime (722512249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20069767 + ... + 20069802.

Almost surely, 2^722512242 is an apocalyptic number.

722512242 is an abundant number, since it is smaller than the sum of its proper divisors (842930988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722512242 is a wasteful number, since it uses less digits than its factorization.

722512242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40139577 (or 40139574 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 722512242 is about 26879.5878316614. The cubic root of 722512242 is about 897.3221811832.

Adding to 722512242 its reverse (242215227), we get a palindrome (964727469).

The spelling of 722512242 in words is "seven hundred twenty-two million, five hundred twelve thousand, two hundred forty-two".