720467136 has 140 divisors (see below), whose sum is σ = 2181868128. Its totient is φ = 234966528.

The previous prime is 720467131. The next prime is 720467161. The reversal of 720467136 is 631764027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 720467136.

It is not an unprimeable number, because it can be changed into a prime (720467131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 242170 + ... + 245126.

Almost surely, 2^720467136 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 720467136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1090934064).

720467136 is an abundant number, since it is smaller than the sum of its proper divisors (1461400992).

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

720467136 is a wasteful number, since it uses less digits than its factorization.

720467136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028 (or 3009 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 720467136 is about 26841.5188839976. The cubic root of 720467136 is about 896.4747430996.

It can be divided in two parts, 720 and 467136, that added together give a square (467856 = 684²).

The spelling of 720467136 in words is "seven hundred twenty million, four hundred sixty-seven thousand, one hundred thirty-six".