2402765 has 4 divisors (see below), whose sum is σ = 2883324. Its totient is φ = 1922208.

The previous prime is 2402761. The next prime is 2402773. The reversal of 2402765 is 5672042.

2402765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 779689 + 1623076 = 883^2 + 1274^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402765 - 2² = 2402761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240272 + ... + 240281.

It is an arithmetic number, because the mean of its divisors is an integer number (720831).

2^2402765 is an apocalyptic number.

It is an amenable number.

2402765 is a deficient number, since it is larger than the sum of its proper divisors (480559).

2402765 is an equidigital number, since it uses as much as digits as its factorization.

2402765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480558.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2402765 is about 1550.0854815138. The cubic root of 2402765 is about 133.9379864535.

The spelling of 2402765 in words is "two million, four hundred two thousand, seven hundred sixty-five".