402608 has 10 divisors (see below), whose sum is σ = 780084. Its totient is φ = 201296.

The previous prime is 402601. The next prime is 402613. The reversal of 402608 is 806204.

402608 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 402608.

It is not an unprimeable number, because it can be changed into a prime (402601) by changing a digit.

402608 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12566 + ... + 12597.

2⁴⁰²⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

402608 is a deficient number, since it is larger than the sum of its proper divisors (377476).

402608 is a wasteful number, since it uses less digits than its factorization.

402608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25171 (or 25165 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 402608 is about 634.5139872375. The cubic root of 402608 is about 73.8404157757.

The spelling of 402608 in words is "four hundred two thousand, six hundred eight".