426138 has 8 divisors (see below), whose sum is σ = 852288. Its totient is φ = 142044.

The previous prime is 426131. The next prime is 426161. The reversal of 426138 is 831624.

It is a happy number.

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

426138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (426131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35506 + ... + 35517.

It is an arithmetic number, because the mean of its divisors is an integer number (106536).

2⁴²⁶¹³⁸ is an apocalyptic number.

426138 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.

426138 is a wasteful number, since it uses less digits than its factorization.

426138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71028.

The product of its digits is 1152, while the sum is 24.

The square root of 426138 is about 652.7924631918. The cubic root of 426138 is about 75.2517760606.

The spelling of 426138 in words is "four hundred twenty-six thousand, one hundred thirty-eight".