4809528720 has 60 divisors (see below), whose sum is σ = 16152003036. Its totient is φ = 1282540800.

The previous prime is 4809528671. The next prime is 4809528727. The reversal of 4809528720 is 278259084.

4809528720 is a `hidden beast` number, since 480 + 95 + 2 + 87 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1504198656 + 3305330064 = 38784^2 + 57492^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×4809528720³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4809528727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3339231 + ... + 3340670.

Almost surely, 2^4809528720 is an apocalyptic number.

4809528720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4809528720 is an abundant number, since it is smaller than the sum of its proper divisors (11342474316).

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

4809528720 is a wasteful number, since it uses less digits than its factorization.

4809528720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6679920 (or 6679911 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 4809528720 is about 69350.7658212943. The cubic root of 4809528720 is about 1687.9808196948.

The spelling of 4809528720 in words is "four billion, eight hundred nine million, five hundred twenty-eight thousand, seven hundred twenty".