2740836 has 48 divisors (see below), whose sum is σ = 7433216. Its totient is φ = 769824.

The previous prime is 2740831. The next prime is 2740853. The reversal of 2740836 is 6380472.

It is a d-powerful number, because it can be written as 2 + 7² + 4⁸ + 0 + 8⁷ + 3¹² + 6⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5385 + ... + 5871.

2^2740836 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 2740836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3716608).

2740836 is an abundant number, since it is smaller than the sum of its proper divisors (4692380).

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

2740836 is a wasteful number, since it uses less digits than its factorization.

2740836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2740836 is about 1655.5470395008. The cubic root of 2740836 is about 139.9461697810.

The spelling of 2740836 in words is "two million, seven hundred forty thousand, eight hundred thirty-six".