1423000 has 32 divisors (see below), whose sum is σ = 3332160. Its totient is φ = 568800.

The previous prime is 1422991. The next prime is 1423003. The reversal of 1423000 is 3241.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423003) 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 7 ways as a sum of consecutive naturals, for example, 289 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (104130).

2^1423000 is an apocalyptic number.

1423000 is a gapful number since it is divisible by the number (10) 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 1423000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1666080).

1423000 is an abundant number, since it is smaller than the sum of its proper divisors (1909160).

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

1423000 is a wasteful number, since it uses less digits than its factorization.

1423000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1423000 is about 1192.8956366757. The cubic root of 1423000 is about 112.4781850705.

Adding to 1423000 its reverse (3241), we get a palindrome (1426241).

The spelling of 1423000 in words is "one million, four hundred twenty-three thousand".