423003000 has 128 divisors (see below), whose sum is σ = 1508382720. Its totient is φ = 96681600.

The previous prime is 423002999. The next prime is 423003001. The reversal of 423003000 is 300324.

It is an interprime number because it is at equal distance from previous prime (423002999) and next prime (423003001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423003001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10929 + ... + 31071.

It is an arithmetic number, because the mean of its divisors is an integer number (11784240).

Almost surely, 2^423003000 is an apocalyptic number.

423003000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423003000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754191360).

423003000 is an abundant number, since it is smaller than the sum of its proper divisors (1085379720).

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

423003000 is a wasteful number, since it uses less digits than its factorization.

423003000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20174 (or 20160 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 423003000 is about 20567.0367335696. The cubic root of 423003000 is about 750.6678495705.

Adding to 423003000 its reverse (300324), we get a palindrome (423303324).

The spelling of 423003000 in words is "four hundred twenty-three million, three thousand".