19794888 has 64 divisors (see below), whose sum is σ = 55540800. Its totient is φ = 6531840.

The previous prime is 19794823. The next prime is 19794937. The reversal of 19794888 is 88849791.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 24003 + ... + 24813.

It is an arithmetic number, because the mean of its divisors is an integer number (867825).

Almost surely, 2^19794888 is an apocalyptic number.

19794888 is a gapful number since it is divisible by the number (18) 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 19794888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27770400).

19794888 is an abundant number, since it is smaller than the sum of its proper divisors (35745912).

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

19794888 is a wasteful number, since it uses less digits than its factorization.

19794888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 929 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 19794888 is about 4449.1446368937. The cubic root of 19794888 is about 270.5106385822.

The spelling of 19794888 in words is "nineteen million, seven hundred ninety-four thousand, eight hundred eighty-eight".