2723780 has 12 divisors (see below), whose sum is σ = 5719980. Its totient is φ = 1089504.

The previous prime is 2723779. The next prime is 2723789. The reversal of 2723780 is 873272.

2723780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 1364224 = 1166^2 + 1168^2 .

It is not an unprimeable number, because it can be changed into a prime (2723789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68075 + ... + 68114.

It is an arithmetic number, because the mean of its divisors is an integer number (476665).

2^2723780 is an apocalyptic number.

2723780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2723780 is an abundant number, since it is smaller than the sum of its proper divisors (2996200).

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

2723780 is a wasteful number, since it uses less digits than its factorization.

2723780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136198 (or 136196 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2723780 is about 1650.3878332077. The cubic root of 2723780 is about 139.6552743186.

The spelling of 2723780 in words is "two million, seven hundred twenty-three thousand, seven hundred eighty".