2729844 has 72 divisors (see below), whose sum is σ = 7847840. Its totient is φ = 793152.

The previous prime is 2729833. The next prime is 2729861. The reversal of 2729844 is 4489272.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2729799 and 2729808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8739 + ... + 9045.

2^2729844 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 2729844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3923920).

2729844 is an abundant number, since it is smaller than the sum of its proper divisors (5117996).

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

2729844 is a wasteful number, since it uses less digits than its factorization.

2729844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 344 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2729844 is about 1652.2239557639. The cubic root of 2729844 is about 139.7588365119.

The spelling of 2729844 in words is "two million, seven hundred twenty-nine thousand, eight hundred forty-four".