2745403 has 4 divisors (see below), whose sum is σ = 2750328. Its totient is φ = 2740480.

The previous prime is 2745397. The next prime is 2745419. The reversal of 2745403 is 3045472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2745403 - 2⁵ = 2745371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2745433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501 + ... + 2782.

It is an arithmetic number, because the mean of its divisors is an integer number (687582).

2^2745403 is an apocalyptic number.

2745403 is a deficient number, since it is larger than the sum of its proper divisors (4925).

2745403 is an equidigital number, since it uses as much as digits as its factorization.

2745403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 2745403 is about 1656.9257678001. The cubic root of 2745403 is about 140.0238564788.

The spelling of 2745403 in words is "two million, seven hundred forty-five thousand, four hundred three".