402375 has 32 divisors (see below), whose sum is σ = 711360. Its totient is φ = 201600.

The previous prime is 402371. The next prime is 402379. The reversal of 402375 is 573204.

It is a happy number.

402375 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 (402371) and next prime (402379).

It is not a de Polignac number, because 402375 - 2² = 402371 is a prime.

402375 is strictly pandigital in base 7.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10857 + ... + 10893.

It is an arithmetic number, because the mean of its divisors is an integer number (22230).

2⁴⁰²³⁷⁵ is an apocalyptic number.

402375 is a deficient number, since it is larger than the sum of its proper divisors (308985).

402375 is a wasteful number, since it uses less digits than its factorization.

402375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 402375 is about 634.3303555719. The cubic root of 402375 is about 73.8261685535.

Adding to 402375 its reverse (573204), we get a palindrome (975579).

It can be divided in two parts, 402 and 375, that added together give a palindrome (777).

The spelling of 402375 in words is "four hundred two thousand, three hundred seventy-five".