722727480 has 128 divisors (see below), whose sum is σ = 2213568000. Its totient is φ = 188739072.

The previous prime is 722727479. The next prime is 722727487. The reversal of 722727480 is 84727227.

It is a happy number.

722727480 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722727487) 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, 1483797 + ... + 1484283.

It is an arithmetic number, because the mean of its divisors is an integer number (17293500).

Almost surely, 2^722727480 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 722727480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106784000).

722727480 is an abundant number, since it is smaller than the sum of its proper divisors (1490840520).

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

722727480 is a wasteful number, since it uses less digits than its factorization.

722727480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 722727480 is about 26883.5912779524. The cubic root of 722727480 is about 897.4112770927.

The spelling of 722727480 in words is "seven hundred twenty-two million, seven hundred twenty-seven thousand, four hundred eighty".