720786432 has 176 divisors, whose sum is σ = 2069271360. Its totient is φ = 222363648.

The previous prime is 720786419. The next prime is 720786463. The reversal of 720786432 is 234687027.

It is a congruent number.

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, 3093388 + ... + 3093620.

Almost surely, 2^720786432 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 720786432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034635680).

720786432 is an abundant number, since it is smaller than the sum of its proper divisors (1348484928).

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

720786432 is a wasteful number, since it uses less digits than its factorization.

720786432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 720786432 is about 26847.4660256792. The cubic root of 720786432 is about 896.6071565068.

It can be divided in two parts, 7207 and 86432, that added together give a palindrome (93639).

The spelling of 720786432 in words is "seven hundred twenty million, seven hundred eighty-six thousand, four hundred thirty-two".