2402605 has 4 divisors (see below), whose sum is σ = 2883132. Its totient is φ = 1922080.

The previous prime is 2402597. The next prime is 2402611. The reversal of 2402605 is 5062042.

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 320356 + 2082249 = 566^2 + 1443^2 .

It is not a de Polignac number, because 2402605 - 2³ = 2402597 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

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, 240256 + ... + 240265.

It is an arithmetic number, because the mean of its divisors is an integer number (720783).

2^2402605 is an apocalyptic number.

It is an amenable number.

2402605 is a deficient number, since it is larger than the sum of its proper divisors (480527).

2402605 is an equidigital number, since it uses as much as digits as its factorization.

2402605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480526.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2402605 is about 1550.0338705977. The cubic root of 2402605 is about 133.9350134129.

Adding to 2402605 its reverse (5062042), we get a palindrome (7464647).

The spelling of 2402605 in words is "two million, four hundred two thousand, six hundred five".