2745939 has 16 divisors (see below), whose sum is σ = 4209920. Its totient is φ = 1559520.

The previous prime is 2745931. The next prime is 2745971. The reversal of 2745939 is 9395472.

It is not a de Polignac number, because 2745939 - 2³ = 2745931 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 7⁴ + 4² + 5⁷ + 9⁶ + 3¹³ + 9⁶ .

It is a Duffinian number.

Its product of digits (68040) is a multiple of the sum of its prime divisors (810).

2745939 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2745897 and 2745906.

It is not an unprimeable number, because it can be changed into a prime (2745931) 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, 4524 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (263120).

2^2745939 is an apocalyptic number.

2745939 is a deficient number, since it is larger than the sum of its proper divisors (1463981).

2745939 is a wasteful number, since it uses less digits than its factorization.

2745939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its digits is 68040, while the sum is 39.

The square root of 2745939 is about 1657.0875052332. The cubic root of 2745939 is about 140.0329684262.

The spelling of 2745939 in words is "two million, seven hundred forty-five thousand, nine hundred thirty-nine".