2743820 has 12 divisors (see below), whose sum is σ = 5762064. Its totient is φ = 1097520.

The previous prime is 2743789. The next prime is 2743823. The reversal of 2743820 is 283472.

2743820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2743820.

It is not an unprimeable number, because it can be changed into a prime (2743823) 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, 68576 + ... + 68615.

It is an arithmetic number, because the mean of its divisors is an integer number (480172).

2^2743820 is an apocalyptic number.

2743820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2743820 is an abundant number, since it is smaller than the sum of its proper divisors (3018244).

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

2743820 is a wasteful number, since it uses less digits than its factorization.

2743820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137200 (or 137198 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2743820 is about 1656.4480070319. The cubic root of 2743820 is about 139.9969387086.

The spelling of 2743820 in words is "two million, seven hundred forty-three thousand, eight hundred twenty".