720007232 has 56 divisors (see below), whose sum is σ = 1672742400. Its totient is φ = 301040640.

The previous prime is 720007231. The next prime is 720007243. The reversal of 720007232 is 232700027.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 720007198 and 720007207.

It is not an unprimeable number, because it can be changed into a prime (720007231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232 + ... + 37967.

It is an arithmetic number, because the mean of its divisors is an integer number (29870400).

Almost surely, 2^720007232 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 720007232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (836371200).

720007232 is an abundant number, since it is smaller than the sum of its proper divisors (952735168).

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

720007232 is a wasteful number, since it uses less digits than its factorization.

720007232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39259 (or 39249 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 720007232 is about 26832.9504900225. The cubic root of 720007232 is about 896.2839501828.

Adding to 720007232 its reverse (232700027), we get a palindrome (952707259).

The spelling of 720007232 in words is "seven hundred twenty million, seven thousand, two hundred thirty-two".