423750 has 40 divisors (see below), whose sum is σ = 1068408. Its totient is φ = 112000.

The previous prime is 423749. The next prime is 423751. The reversal of 423750 is 57324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (423749) and next prime (423751).

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 423750.

It is not an unprimeable number, because it can be changed into a prime (423751) 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 19 ways as a sum of consecutive naturals, for example, 3694 + ... + 3806.

2⁴²³⁷⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534204).

423750 is an abundant number, since it is smaller than the sum of its proper divisors (644658).

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

423750 is a wasteful number, since it uses less digits than its factorization.

423750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 423750 is about 650.9608283146. The cubic root of 423750 is about 75.1109469073.

The spelling of 423750 in words is "four hundred twenty-three thousand, seven hundred fifty".