2402305 has 4 divisors (see below), whose sum is σ = 2882772. Its totient is φ = 1921840.

The previous prime is 2402297. The next prime is 2402317. The reversal of 2402305 is 5032042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5032042 = 2 ⋅2516021.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 804609 = 1264^2 + 897^2 .

It is not a de Polignac number, because 2402305 - 2³ = 2402297 is a prime.

It is a Duffinian 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, 240226 + ... + 240235.

It is an arithmetic number, because the mean of its divisors is an integer number (720693).

It is a Proth number, since it is equal to 1173 ⋅ 2¹¹ + 1 and 1173 < 2¹¹.

2^2402305 is an apocalyptic number.

It is an amenable number.

2402305 is a deficient number, since it is larger than the sum of its proper divisors (480467).

2402305 is an equidigital number, since it uses as much as digits as its factorization.

2402305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480466.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2402305 is about 1549.9370954977. The cubic root of 2402305 is about 133.9294386060.

Adding to 2402305 its reverse (5032042), we get a palindrome (7434347).

The spelling of 2402305 in words is "two million, four hundred two thousand, three hundred five".