423888 has 20 divisors (see below), whose sum is σ = 1095168. Its totient is φ = 141280.

The previous prime is 423887. The next prime is 423931. The reversal of 423888 is 888324.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423888.

It is not an unprimeable number, because it can be changed into a prime (423883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4368 + ... + 4463.

2⁴²³⁸⁸⁸ is an apocalyptic number.

423888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

423888 is an abundant number, since it is smaller than the sum of its proper divisors (671280).

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

423888 is a wasteful number, since it uses less digits than its factorization.

423888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842 (or 8836 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 423888 is about 651.0668168475. The cubic root of 423888 is about 75.1190996591.

The spelling of 423888 in words is "four hundred twenty-three thousand, eight hundred eighty-eight".