722616126 has 16 divisors (see below), whose sum is σ = 1468925328. Its totient is φ = 236923200.

The previous prime is 722616121. The next prime is 722616197. The reversal of 722616126 is 621616227.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722616121) 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 7 ways as a sum of consecutive naturals, for example, 986815 + ... + 987546.

It is an arithmetic number, because the mean of its divisors is an integer number (91807833).

Almost surely, 2^722616126 is an apocalyptic number.

722616126 is an abundant number, since it is smaller than the sum of its proper divisors (746309202).

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

722616126 is a wasteful number, since it uses less digits than its factorization.

722616126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974427.

The product of its digits is 12096, while the sum is 33.

The square root of 722616126 is about 26881.5201579077. The cubic root of 722616126 is about 897.3651852758.

It can be divided in two parts, 72261 and 6126, that added together give a palindrome (78387).

The spelling of 722616126 in words is "seven hundred twenty-two million, six hundred sixteen thousand, one hundred twenty-six".