722234880 has 360 divisors, whose sum is σ = 2657778552. Its totient is φ = 188116992.

The previous prime is 722234809. The next prime is 722234881. The reversal of 722234880 is 88432227.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×722234880² = 1043246443777228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722234881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16796139 + ... + 16796181.

Almost surely, 2^722234880 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 722234880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328889276).

722234880 is an abundant number, since it is smaller than the sum of its proper divisors (1935543672).

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

722234880 is an frugal number, since it uses more digits than its factorization.

722234880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 722234880 is about 26874.4279939127. The cubic root of 722234880 is about 897.2073434846.

The spelling of 722234880 in words is "seven hundred twenty-two million, two hundred thirty-four thousand, eight hundred eighty".