423858 has 16 divisors (see below), whose sum is σ = 868896. Its totient is φ = 137760.

The previous prime is 423853. The next prime is 423859. The reversal of 423858 is 858324.

It is a d-powerful number, because it can be written as 4⁴ + 2¹⁵ + 8² + 3⁴ + 5⁸ + 8² .

It is not an unprimeable number, because it can be changed into a prime (423853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (54306).

2⁴²³⁸⁵⁸ is an apocalyptic number.

423858 is an abundant number, since it is smaller than the sum of its proper divisors (445038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423858 is a wasteful number, since it uses less digits than its factorization.

423858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769.

The product of its digits is 7680, while the sum is 30.

The square root of 423858 is about 651.0437773299. The cubic root of 423858 is about 75.1173274723.

The spelling of 423858 in words is "four hundred twenty-three thousand, eight hundred fifty-eight".