722011968 has 280 divisors, whose sum is σ = 2271857280. Its totient is φ = 226437120.

The previous prime is 722011949. The next prime is 722011973. The reversal of 722011968 is 869110227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9139353 + ... + 9139431.

It is an arithmetic number, because the mean of its divisors is an integer number (8113776).

Almost surely, 2^722011968 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 722011968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135928640).

722011968 is an abundant number, since it is smaller than the sum of its proper divisors (1549845312).

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

722011968 is a wasteful number, since it uses less digits than its factorization.

722011968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 722011968 is about 26870.2803855859. The cubic root of 722011968 is about 897.1150287043.

The spelling of 722011968 in words is "seven hundred twenty-two million, eleven thousand, nine hundred sixty-eight".