104189520 has 80 divisors (see below), whose sum is σ = 329121792. Its totient is φ = 27256320.

The previous prime is 104189513. The next prime is 104189531. The reversal of 104189520 is 25981401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8625 + ... + 16815.

Almost surely, 2^104189520 is an apocalyptic number.

104189520 is a gapful number since it is divisible by the number (10) 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 104189520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164560896).

104189520 is an abundant number, since it is smaller than the sum of its proper divisors (224932272).

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

104189520 is a wasteful number, since it uses less digits than its factorization.

104189520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8260 (or 8254 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 104189520 is about 10207.3267803083. The cubic root of 104189520 is about 470.5524212205.

The spelling of 104189520 in words is "one hundred four million, one hundred eighty-nine thousand, five hundred twenty".