722618834 has 16 divisors (see below), whose sum is σ = 1242052800. Its totient is φ = 308874384.

The previous prime is 722618821. The next prime is 722618837. The reversal of 722618834 is 438816227.

It is a junction number, because it is equal to n+sod(n) for n = 722618791 and 722618800.

It is not an unprimeable number, because it can be changed into a prime (722618837) 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 7 ways as a sum of consecutive naturals, for example, 62789 + ... + 73400.

It is an arithmetic number, because the mean of its divisors is an integer number (77628300).

Almost surely, 2^722618834 is an apocalyptic number.

722618834 is a deficient number, since it is larger than the sum of its proper divisors (519433966).

722618834 is a wasteful number, since it uses less digits than its factorization.

722618834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136577.

The product of its digits is 129024, while the sum is 41.

The square root of 722618834 is about 26881.5705270358. The cubic root of 722618834 is about 897.3663062315.

The spelling of 722618834 in words is "seven hundred twenty-two million, six hundred eighteen thousand, eight hundred thirty-four".