42046 has 4 divisors (see below), whose sum is σ = 63072. Its totient is φ = 21022.

The previous prime is 42043. The next prime is 42061. The reversal of 42046 is 64024.

42046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×42046² = 3535732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510 + ... + 10513.

It is an arithmetic number, because the mean of its divisors is an integer number (15768).

2⁴²⁰⁴⁶ is an apocalyptic number.

42046 is a deficient number, since it is larger than the sum of its proper divisors (21026).

42046 is a wasteful number, since it uses less digits than its factorization.

42046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21025.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42046 is about 205.0512131152. The cubic root of 42046 is about 34.7729520747.

The spelling of 42046 in words is "forty-two thousand, forty-six", and thus it is an eban number.