402342 has 8 divisors (see below), whose sum is σ = 804696. Its totient is φ = 134112.

The previous prime is 402341. The next prime is 402343. The reversal of 402342 is 243204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402341) and next prime (402343).

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

402342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402341) 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, 33523 + ... + 33534.

It is an arithmetic number, because the mean of its divisors is an integer number (100587).

2⁴⁰²³⁴² is an apocalyptic number.

402342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402342 is a wasteful number, since it uses less digits than its factorization.

402342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67062.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 402342 is about 634.3043433558. The cubic root of 402342 is about 73.8241502619.

Adding to 402342 its reverse (243204), we get a palindrome (645546).

The spelling of 402342 in words is "four hundred two thousand, three hundred forty-two", and thus it is an iban number.