2723730 has 32 divisors (see below), whose sum is σ = 6588864. Its totient is φ = 720576.

The previous prime is 2723719. The next prime is 2723731. The reversal of 2723730 is 373272.

2723730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2723730² = 14837410225800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2723730.

It is not an unprimeable number, because it can be changed into a prime (2723731) 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 15 ways as a sum of consecutive naturals, for example, 4612 + ... + 5168.

It is an arithmetic number, because the mean of its divisors is an integer number (205902).

2^2723730 is an apocalyptic number.

2723730 is an abundant number, since it is smaller than the sum of its proper divisors (3865134).

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

2723730 is a wasteful number, since it uses less digits than its factorization.

2723730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 2723730 is about 1650.3726851836. The cubic root of 2723730 is about 139.6544197701.

The spelling of 2723730 in words is "two million, seven hundred twenty-three thousand, seven hundred thirty".