2742813 has 6 divisors (see below), whose sum is σ = 3961854. Its totient is φ = 1828536.

The previous prime is 2742811. The next prime is 2742853. The reversal of 2742813 is 3182472.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 10404 = 1653^2 + 102^2 .

It is not a de Polignac number, because 2742813 - 2¹ = 2742811 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 4⁵ + 2²¹ + 8³ + 1 + 3⁷ .

2742813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152370 + ... + 152387.

It is an arithmetic number, because the mean of its divisors is an integer number (660309).

2^2742813 is an apocalyptic number.

It is an amenable number.

2742813 is a deficient number, since it is larger than the sum of its proper divisors (1219041).

2742813 is a wasteful number, since it uses less digits than its factorization.

2742813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304763 (or 304760 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2742813 is about 1656.1440154769. The cubic root of 2742813 is about 139.9798100136.

The spelling of 2742813 in words is "two million, seven hundred forty-two thousand, eight hundred thirteen".