2744040 has 64 divisors (see below), whose sum is σ = 8870400. Its totient is φ = 675072.

The previous prime is 2744039. The next prime is 2744051. The reversal of 2744040 is 404472.

It is a junction number, because it is equal to n+sod(n) for n = 2743998 and 2744016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

2^2744040 is an apocalyptic number.

2744040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2744040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4435200).

2744040 is an abundant number, since it is smaller than the sum of its proper divisors (6126360).

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

2744040 is a wasteful number, since it uses less digits than its factorization.

2744040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 2744040 is about 1656.5144128561. The cubic root of 2744040 is about 140.0006802688. Note that the first 3 decimals are identical.

The spelling of 2744040 in words is "two million, seven hundred forty-four thousand, forty".