402382 has 8 divisors (see below), whose sum is σ = 635400. Its totient is φ = 190584.

The previous prime is 402379. The next prime is 402383. The reversal of 402382 is 283204.

It is a happy number.

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

It is a super-2 number, since 2×402382² = 323822547848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5257 + ... + 5332.

It is an arithmetic number, because the mean of its divisors is an integer number (79425).

2⁴⁰²³⁸² is an apocalyptic number.

402382 is a deficient number, since it is larger than the sum of its proper divisors (233018).

402382 is a wasteful number, since it uses less digits than its factorization.

402382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 402382 is about 634.3358731776. The cubic root of 402382 is about 73.8265966617.

Adding to 402382 its reverse (283204), we get a palindrome (685586).

It can be divided in two parts, 402 and 382, that added together give a square (784 = 28²).

The spelling of 402382 in words is "four hundred two thousand, three hundred eighty-two".