722784384 has 320 divisors, whose sum is σ = 2571085440. Its totient is φ = 197074944.

The previous prime is 722784379. The next prime is 722784443. The reversal of 722784384 is 483487227.

It is a nude number because it is divisible by every one of its digits.

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, 1669032 + ... + 1669464.

It is an arithmetic number, because the mean of its divisors is an integer number (8034642).

Almost surely, 2^722784384 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 722784384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285542720).

722784384 is an abundant number, since it is smaller than the sum of its proper divisors (1848301056).

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

722784384 is a wasteful number, since it uses less digits than its factorization.

722784384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 468 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 722784384 is about 26884.6495978653. The cubic root of 722784384 is about 897.4348290550.

The spelling of 722784384 in words is "seven hundred twenty-two million, seven hundred eighty-four thousand, three hundred eighty-four".