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42342 = 237057

42342 has 8 divisors (see below), whose sum is σ = 84696. Its totient is φ = 14112.

The previous prime is 42337. The next prime is 42349. The reversal of 42342 is 24324.

Adding to 42342 its reverse (24324), we get a palindrome (66666).

It can be divided in two parts, 423 and 42, that multiplied together give a triangular number (17766 = T188).

It is a happy number.

42342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

42342 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42342.

It is not an unprimeable number, because it can be changed into a prime (42349) 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, 3523 + ... + 3534.

It is an arithmetic number, because the mean of its divisors is an integer number (10587).

242342 is an apocalyptic number.

42342 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.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42348).

42342 is a wasteful number, since it uses less digits than its factorization.

42342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7062.

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

The square root of 42342 is about 205.7717181733. The cubic root of 42342 is about 34.8543608048.

The spelling of 42342 in words is "forty-two thousand, three hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 7057 14114 21171 42342