2720308500 has 648 divisors, whose sum is σ = 10957807224. Its totient is φ = 566092800.

The previous prime is 2720308469. The next prime is 2720308501. The reversal of 2720308500 is 58030272.

It can be written as a sum of positive squares in 12 ways, for example, as 2595494916 + 124813584 = 50946^2 + 11172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720308501) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 37264464 + ... + 37264536.

Almost surely, 2^2720308500 is an apocalyptic number.

2720308500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2720308500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5478903612).

2720308500 is an abundant number, since it is smaller than the sum of its proper divisors (8237498724).

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

2720308500 is a wasteful number, since it uses less digits than its factorization.

2720308500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2720308500 is about 52156.5767665018. The cubic root of 2720308500 is about 1395.9591815445.

Adding to 2720308500 its reverse (58030272), we get a palindrome (2778338772).

The spelling of 2720308500 in words is "two billion, seven hundred twenty million, three hundred eight thousand, five hundred".