723010320 has 80 divisors (see below), whose sum is σ = 2490376320. Its totient is φ = 192802176.

The previous prime is 723010297. The next prime is 723010361. The reversal of 723010320 is 23010327.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 723010293 and 723010302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165204 + ... + 169523.

It is an arithmetic number, because the mean of its divisors is an integer number (31129704).

Almost surely, 2^723010320 is an apocalyptic number.

It is an amenable number.

723010320 is an abundant number, since it is smaller than the sum of its proper divisors (1767366000).

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

723010320 is a wasteful number, since it uses less digits than its factorization.

723010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334749 (or 334737 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 723010320 is about 26888.8512212776. The cubic root of 723010320 is about 897.5283293743.

Adding to 723010320 its reverse (23010327), we get a palindrome (746020647).

The spelling of 723010320 in words is "seven hundred twenty-three million, ten thousand, three hundred twenty".