723726380 has 96 divisors (see below), whose sum is σ = 1757536704. Its totient is φ = 247947264.

The previous prime is 723726361. The next prime is 723726389. The reversal of 723726380 is 83627327.

It is not an unprimeable number, because it can be changed into a prime (723726389) 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, 321539 + ... + 323781.

It is an arithmetic number, because the mean of its divisors is an integer number (18307674).

Almost surely, 2^723726380 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 723726380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878768352).

723726380 is an abundant number, since it is smaller than the sum of its proper divisors (1033810324).

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

723726380 is a wasteful number, since it uses less digits than its factorization.

723726380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 723726380 is about 26902.1631100549. The cubic root of 723726380 is about 897.8245317316.

The spelling of 723726380 in words is "seven hundred twenty-three million, seven hundred twenty-six thousand, three hundred eighty".