2402505 has 48 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 1056384.

The previous prime is 2402501. The next prime is 2402509. The reversal of 2402505 is 5052042.

It is an interprime number because it is at equal distance from previous prime (2402501) and next prime (2402509).

It is not a de Polignac number, because 2402505 - 2² = 2402501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2402501) 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, 9004 + ... + 9266.

It is an arithmetic number, because the mean of its divisors is an integer number (102960).

2^2402505 is an apocalyptic number.

It is an amenable number.

2402505 is an abundant number, since it is smaller than the sum of its proper divisors (2539575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2402505 is a wasteful number, since it uses less digits than its factorization.

2402505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2402505 is about 1550.0016129024. The cubic root of 2402505 is about 133.9331551955.

Adding to 2402505 its reverse (5052042), we get a palindrome (7454547).

The spelling of 2402505 in words is "two million, four hundred two thousand, five hundred five".