402585 has 8 divisors (see below), whose sum is σ = 644160. Its totient is φ = 214704.

The previous prime is 402583. The next prime is 402587. The reversal of 402585 is 585204.

402585 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (402583) and next prime (402587).

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

It is not a de Polignac number, because 402585 - 2¹ = 402583 is a prime.

402585 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402585.

It is not an unprimeable number, because it can be changed into a prime (402581) 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, 13405 + ... + 13434.

It is an arithmetic number, because the mean of its divisors is an integer number (80520).

2⁴⁰²⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

402585 is a deficient number, since it is larger than the sum of its proper divisors (241575).

402585 is a wasteful number, since it uses less digits than its factorization.

402585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26847.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 402585 is about 634.4958628707. The cubic root of 402585 is about 73.8390096421.

Adding to 402585 its reverse (585204), we get a palindrome (987789).

The spelling of 402585 in words is "four hundred two thousand, five hundred eighty-five".