19238973 has 16 divisors (see below), whose sum is σ = 28081536. Its totient is φ = 11643840.

The previous prime is 19238969. The next prime is 19238981. The reversal of 19238973 is 37983291.

It is not a de Polignac number, because 19238973 - 2² = 19238969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19238873) 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 15 ways as a sum of consecutive naturals, for example, 1665 + ... + 6422.

It is an arithmetic number, because the mean of its divisors is an integer number (1755096).

Almost surely, 2^19238973 is an apocalyptic number.

19238973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19238973 is a deficient number, since it is larger than the sum of its proper divisors (8842563).

19238973 is a wasteful number, since it uses less digits than its factorization.

19238973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8164.

The product of its digits is 81648, while the sum is 42.

The square root of 19238973 is about 4386.2253704068. The cubic root of 19238973 is about 267.9542368210.

The spelling of 19238973 in words is "nineteen million, two hundred thirty-eight thousand, nine hundred seventy-three".