722072160 has 144 divisors (see below), whose sum is σ = 2549186640. Its totient is φ = 185902080.

The previous prime is 722072123. The next prime is 722072179. The reversal of 722072160 is 61270227.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 33115 + ... + 50405.

It is an arithmetic number, because the mean of its divisors is an integer number (17702685).

Almost surely, 2^722072160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722072160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274593320).

722072160 is an abundant number, since it is smaller than the sum of its proper divisors (1827114480).

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

722072160 is a wasteful number, since it uses less digits than its factorization.

722072160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17341 (or 17330 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 722072160 is about 26871.4004101014. The cubic root of 722072160 is about 897.1399579528.

The spelling of 722072160 in words is "seven hundred twenty-two million, seventy-two thousand, one hundred sixty".