18927104 has 40 divisors (see below), whose sum is σ = 43227888. Its totient is φ = 8110080.

The previous prime is 18927101. The next prime is 18927113. The reversal of 18927104 is 40172981.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18927101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944 + ... + 6224.

Almost surely, 2^18927104 is an apocalyptic number.

18927104 is a gapful number since it is divisible by the number (14) 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 18927104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21613944).

18927104 is an abundant number, since it is smaller than the sum of its proper divisors (24300784).

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

18927104 is an frugal number, since it uses more digits than its factorization.

18927104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306 (or 5290 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 18927104 is about 4350.5291632168. The cubic root of 18927104 is about 266.4984717143.

The spelling of 18927104 in words is "eighteen million, nine hundred twenty-seven thousand, one hundred four".