718521944 has 64 divisors (see below), whose sum is σ = 1586679360. Its totient is φ = 298598400.

The previous prime is 718521941. The next prime is 718521967. The reversal of 718521944 is 449125817.

718521944 is digitally balanced in base 2, because in such base 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 (718521941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195244 + ... + 1195844.

It is an arithmetic number, because the mean of its divisors is an integer number (24791865).

Almost surely, 2^718521944 is an apocalyptic number.

718521944 is a gapful number since it is divisible by the number (74) 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 718521944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793339680).

718521944 is an abundant number, since it is smaller than the sum of its proper divisors (868157416).

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

718521944 is a wasteful number, since it uses less digits than its factorization.

718521944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1224 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 718521944 is about 26805.2596331392. The cubic root of 718521944 is about 895.6672173766.

The spelling of 718521944 in words is "seven hundred eighteen million, five hundred twenty-one thousand, nine hundred forty-four".