42826 has 24 divisors (see below), whose sum is σ = 82080. Its totient is φ = 16632.

The previous prime is 42821. The next prime is 42829. The reversal of 42826 is 62824.

42826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 42797 and 42806.

It is not an unprimeable number, because it can be changed into a prime (42821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1851 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (3420).

2⁴²⁸²⁶ is an apocalyptic number.

42826 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42826 is a deficient number, since it is larger than the sum of its proper divisors (39254).

42826 is a wasteful number, since it uses less digits than its factorization.

42826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 51 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 42826 is about 206.9444369873. The cubic root of 42826 is about 34.9866615841.

It can be divided in two parts, 428 and 26, that added together give a palindrome (454).

The spelling of 42826 in words is "forty-two thousand, eight hundred twenty-six".