2428765 has 4 divisors (see below), whose sum is σ = 2914524. Its totient is φ = 1943008.

The previous prime is 2428753. The next prime is 2428771. The reversal of 2428765 is 5678242.

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 1692601 + 736164 = 1301^2 + 858^2 .

It is a cyclic number.

It is not a de Polignac number, because 2428765 - 2⁵ = 2428733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2428765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242872 + ... + 242881.

It is an arithmetic number, because the mean of its divisors is an integer number (728631).

2^2428765 is an apocalyptic number.

It is an amenable number.

2428765 is a deficient number, since it is larger than the sum of its proper divisors (485759).

2428765 is an equidigital number, since it uses as much as digits as its factorization.

2428765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485758.

The product of its digits is 26880, while the sum is 34.

The square root of 2428765 is about 1558.4495500336. The cubic root of 2428765 is about 134.4193626735.

The spelling of 2428765 in words is "two million, four hundred twenty-eight thousand, seven hundred sixty-five".