2402405 has 8 divisors (see below), whose sum is σ = 2944512. Its totient is φ = 1880848.

The previous prime is 2402401. The next prime is 2402431. The reversal of 2402405 is 5042042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2402405 - 2² = 2402401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4877 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (368064).

2^2402405 is an apocalyptic number.

It is an amenable number.

2402405 is a deficient number, since it is larger than the sum of its proper divisors (542107).

2402405 is a wasteful number, since it uses less digits than its factorization.

2402405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10275.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2402405 is about 1549.9693545358. The cubic root of 2402405 is about 133.9312969265.

Adding to 2402405 its reverse (5042042), we get a palindrome (7444447).

The spelling of 2402405 in words is "two million, four hundred two thousand, four hundred five".