13521984 has 56 divisors (see below), whose sum is σ = 40891968. Its totient is φ = 3863040.

The previous prime is 13521979. The next prime is 13522013. The reversal of 13521984 is 48912531.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3687 + ... + 6374.

Almost surely, 2^13521984 is an apocalyptic number.

13521984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13521984 is an abundant number, since it is smaller than the sum of its proper divisors (27369984).

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

13521984 is a wasteful number, since it uses less digits than its factorization.

13521984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10083 (or 10073 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 13521984 is about 3677.2250407066. The cubic root of 13521984 is about 238.2393374212.

The spelling of 13521984 in words is "thirteen million, five hundred twenty-one thousand, nine hundred eighty-four".