19423000 has 32 divisors (see below), whose sum is σ = 45452160. Its totient is φ = 7768800.

The previous prime is 19422983. The next prime is 19423013. The reversal of 19423000 is 32491.

It is a congruent number.

It is an unprimeable number.

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, 8712 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (1420380).

Almost surely, 2^19423000 is an apocalyptic number.

19423000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19423000 is an abundant number, since it is smaller than the sum of its proper divisors (26029160).

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

19423000 is a wasteful number, since it uses less digits than its factorization.

19423000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444 (or 19430 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 19423000 is about 4407.1532762090. The cubic root of 19423000 is about 268.8058834573.

Adding to 19423000 its reverse (32491), we get a palindrome (19455491).

The spelling of 19423000 in words is "nineteen million, four hundred twenty-three thousand".