722856960 has 528 divisors, whose sum is σ = 3004275456. Its totient is φ = 163233792.

The previous prime is 722856943. The next prime is 722856991. The reversal of 722856960 is 69658227.

722856960 is a `hidden beast` number, since 7 + 2 + 28 + 569 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8709079 + ... + 8709161.

Almost surely, 2^722856960 is an apocalyptic number.

722856960 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722856960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502137728).

722856960 is an abundant number, since it is smaller than the sum of its proper divisors (2281418496).

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

722856960 is an equidigital number, since it uses as much as digits as its factorization.

722856960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 722856960 is about 26885.9993305066. Note that the first 3 decimals coincide. The cubic root of 722856960 is about 897.4648656984.

The spelling of 722856960 in words is "seven hundred twenty-two million, eight hundred fifty-six thousand, nine hundred sixty".