2720723820 has 48 divisors (see below), whose sum is σ = 7949249280. Its totient is φ = 693981376.

The previous prime is 2720723813. The next prime is 2720723833. The reversal of 2720723820 is 283270272.

2720723820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 984390 + ... + 987149.

It is an arithmetic number, because the mean of its divisors is an integer number (165609360).

Almost surely, 2^2720723820 is an apocalyptic number.

2720723820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2720723820 is an abundant number, since it is smaller than the sum of its proper divisors (5228525460).

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

2720723820 is a wasteful number, since it uses less digits than its factorization.

2720723820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971574 (or 1971572 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 2720723820 is about 52160.5580875052. The cubic root of 2720723820 is about 1396.0302200884.

The spelling of 2720723820 in words is "two billion, seven hundred twenty million, seven hundred twenty-three thousand, eight hundred twenty".