19828974 has 16 divisors (see below), whose sum is σ = 43263360. Its totient is φ = 6008760.

The previous prime is 19828973. The next prime is 19828997. The reversal of 19828974 is 47982891.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19828973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150154 + ... + 150285.

It is an arithmetic number, because the mean of its divisors is an integer number (2703960).

Almost surely, 2^19828974 is an apocalyptic number.

19828974 is an abundant number, since it is smaller than the sum of its proper divisors (23434386).

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

19828974 is a wasteful number, since it uses less digits than its factorization.

19828974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300455.

The product of its digits is 290304, while the sum is 48.

The square root of 19828974 is about 4452.9736132162. The cubic root of 19828974 is about 270.6658190202.

It can be divided in two parts, 19828 and 974, that added together give a palindrome (20802).

The spelling of 19828974 in words is "nineteen million, eight hundred twenty-eight thousand, nine hundred seventy-four".