722793216 has 288 divisors, whose sum is σ = 2225180160. Its totient is φ = 206897152.

The previous prime is 722793173. The next prime is 722793217. The reversal of 722793216 is 612397227.

It is not an unprimeable number, because it can be changed into a prime (722793217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8708311 + ... + 8708393.

It is an arithmetic number, because the mean of its divisors is an integer number (7726320).

Almost surely, 2^722793216 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 722793216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1112590080).

722793216 is an abundant number, since it is smaller than the sum of its proper divisors (1502386944).

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

722793216 is a wasteful number, since it uses less digits than its factorization.

722793216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 157 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 722793216 is about 26884.8138546652. The cubic root of 722793216 is about 897.4384844154.

The spelling of 722793216 in words is "seven hundred twenty-two million, seven hundred ninety-three thousand, two hundred sixteen".