722008909440 has 1536 divisors, whose sum is σ = 3370497661440. Its totient is φ = 143327232000.

The previous prime is 722008909429. The next prime is 722008909481. The reversal of 722008909440 is 44909800227.

It is a super-2 number, since 2×722008909440² (a number of 25 digits) contains 22 as substring.

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 191 ways as a sum of consecutive naturals, for example, 240587940 + ... + 240590940.

It is an arithmetic number, because the mean of its divisors is an integer number (2194334415).

Almost surely, 2^722008909440 is an apocalyptic number.

722008909440 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 722008909440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1685248830720).

722008909440 is an abundant number, since it is smaller than the sum of its proper divisors (2648488752000).

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

722008909440 is a wasteful number, since it uses less digits than its factorization.

722008909440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072 (or 3048 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 722008909440 in words is "seven hundred twenty-two billion, eight million, nine hundred nine thousand, four hundred forty".