720427176 has 128 divisors (see below), whose sum is σ = 2298240000. Its totient is φ = 204831936.

The previous prime is 720427171. The next prime is 720427177. The reversal of 720427176 is 671724027.

It is a happy number.

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 720427176.

It is not an unprimeable number, because it can be changed into a prime (720427171) 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, 342175 + ... + 344273.

It is an arithmetic number, because the mean of its divisors is an integer number (17955000).

Almost surely, 2^720427176 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 720427176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149120000).

720427176 is an abundant number, since it is smaller than the sum of its proper divisors (1577812824).

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

720427176 is a wasteful number, since it uses less digits than its factorization.

720427176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 720427176 is about 26840.7745044736. The cubic root of 720427176 is about 896.4581687637.

The spelling of 720427176 in words is "seven hundred twenty million, four hundred twenty-seven thousand, one hundred seventy-six".