723139032 has 128 divisors (see below), whose sum is σ = 2264371200. Its totient is φ = 186960000.

The previous prime is 723139009. The next prime is 723139037. The reversal of 723139032 is 230931327.

723139032 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 (723139037) 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, 463069 + ... + 464627.

It is an arithmetic number, because the mean of its divisors is an integer number (17690400).

Almost surely, 2^723139032 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 723139032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132185600).

723139032 is an abundant number, since it is smaller than the sum of its proper divisors (1541232168).

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

723139032 is a wasteful number, since it uses less digits than its factorization.

723139032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 723139032 is about 26891.2445230785. The cubic root of 723139032 is about 897.5815862498.

The spelling of 723139032 in words is "seven hundred twenty-three million, one hundred thirty-nine thousand, thirty-two".