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BaseRepresentation
bin111111001010
312112201
4333022
5112132
630414
714533
oct7712
95481
104042
113045
12240a
131abc
14168a
1512e7
hexfca

4042 has 8 divisors (see below), whose sum is σ = 6336. Its totient is φ = 1932.

The previous prime is 4027. The next prime is 4049. The reversal of 4042 is 2404.

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

It is a plaindrome in base 13 and base 14.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (4049) 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, 63 + ... + 109.

It is an arithmetic number, because the mean of its divisors is an integer number (792).

24042 is an apocalyptic number.

4042 is a deficient number, since it is larger than the sum of its proper divisors (2294).

4042 is a wasteful number, since it uses less digits than its factorization.

4042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 4042 is about 63.5767253010. The cubic root of 4042 is about 15.9293762263.

Adding to 4042 its reverse (2404), we get a palindrome (6446).

It can be divided in two parts, 404 and 2, that multiplied together give a palindrome (808).

The spelling of 4042 in words is "four thousand, forty-two", and thus it is an eban number and an iban number.

Divisors: 1 2 43 47 86 94 2021 4042