722613650 has 24 divisors (see below), whose sum is σ = 1466249904. Its totient is φ = 262768400.

The previous prime is 722613637. The next prime is 722613653. The reversal of 722613650 is 56316227.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (722613653) 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 11 ways as a sum of consecutive naturals, for example, 656372 + ... + 657471.

It is an arithmetic number, because the mean of its divisors is an integer number (61093746).

Almost surely, 2^722613650 is an apocalyptic number.

722613650 is an abundant number, since it is smaller than the sum of its proper divisors (743636254).

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

722613650 is a wasteful number, since it uses less digits than its factorization.

722613650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313866 (or 1313861 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 722613650 is about 26881.4741039252. The cubic root of 722613650 is about 897.3641603523.

Adding to 722613650 its reverse (56316227), we get a palindrome (778929877).

The spelling of 722613650 in words is "seven hundred twenty-two million, six hundred thirteen thousand, six hundred fifty".