2723844 has 48 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 850080.

The previous prime is 2723839. The next prime is 2723863. The reversal of 2723844 is 4483272.

It is a super-2 number, since 2×2723844² = 14838652272672, which contains 22 as substring.

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, 19527 + ... + 19665.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

2^2723844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2723844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386880).

2723844 is an abundant number, since it is smaller than the sum of its proper divisors (4049916).

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

2723844 is a wasteful number, since it uses less digits than its factorization.

2723844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 238 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 2723844 is about 1650.4072224757. The cubic root of 2723844 is about 139.6563681254.

It can be divided in two parts, 27 and 23844, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 2723844 in words is "two million, seven hundred twenty-three thousand, eight hundred forty-four".