722473984 has 44 divisors (see below), whose sum is σ = 1494105300. Its totient is φ = 348766208.

The previous prime is 722473981. The next prime is 722474009. The reversal of 722473984 is 489374227.

It can be written as a sum of positive squares in 2 ways, for example, as 487526400 + 234947584 = 22080^2 + 15328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722473981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17532 + ... + 41860.

Almost surely, 2^722473984 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 722473984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747052650).

722473984 is an abundant number, since it is smaller than the sum of its proper divisors (771631316).

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

722473984 is a wasteful number, since it uses less digits than its factorization.

722473984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24378 (or 24360 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 722473984 is about 26878.8761669829. The cubic root of 722473984 is about 897.3063427627.

The spelling of 722473984 in words is "seven hundred twenty-two million, four hundred seventy-three thousand, nine hundred eighty-four".