13916784 has 120 divisors (see below), whose sum is σ = 42945168. Its totient is φ = 3870720.

The previous prime is 13916783. The next prime is 13916789. The reversal of 13916784 is 48761931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13916783) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 143424 + ... + 143520.

Almost surely, 2^13916784 is an apocalyptic number.

13916784 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 13916784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21472584).

13916784 is an abundant number, since it is smaller than the sum of its proper divisors (29028384).

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

13916784 is a wasteful number, since it uses less digits than its factorization.

13916784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 170 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 13916784 is about 3730.5206071003. The cubic root of 13916784 is about 240.5357476149.

The spelling of 13916784 in words is "thirteen million, nine hundred sixteen thousand, seven hundred eighty-four".