2740045 has 24 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 1705440.

The previous prime is 2740039. The next prime is 2740051. The reversal of 2740045 is 5400472.

It is an interprime number because it is at equal distance from previous prime (2740039) and next prime (2740051).

It is not a de Polignac number, because 2740045 - 2³ = 2740037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2739998 and 2740025.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 3912 + ... + 4558.

It is an arithmetic number, because the mean of its divisors is an integer number (172368).

2^2740045 is an apocalyptic number.

It is an amenable number.

2740045 is a deficient number, since it is larger than the sum of its proper divisors (1396787).

2740045 is a wasteful number, since it uses less digits than its factorization.

2740045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2740045 is about 1655.3081284160. The cubic root of 2740045 is about 139.9327057539.

It can be divided in two parts, 2 and 740045, that added together give a palindrome (740047).

The spelling of 2740045 in words is "two million, seven hundred forty thousand, forty-five".