2745765 has 48 divisors (see below), whose sum is σ = 5451840. Its totient is φ = 1300320.

The previous prime is 2745761. The next prime is 2745767. The reversal of 2745765 is 5675472.

2745765 = 41² + 42² + ... + 202².

It is not a de Polignac number, because 2745765 - 2² = 2745761 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63834 + ... + 63876.

It is an arithmetic number, because the mean of its divisors is an integer number (113580).

2^2745765 is an apocalyptic number.

It is an amenable number.

2745765 is a deficient number, since it is larger than the sum of its proper divisors (2706075).

2745765 is a wasteful number, since it uses less digits than its factorization.

2745765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 62 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 2745765 is about 1657.0350026478. The cubic root of 2745765 is about 140.0300105732.

The spelling of 2745765 in words is "two million, seven hundred forty-five thousand, seven hundred sixty-five".