13999104 has 198 divisors, whose sum is σ = 48538464. Its totient is φ = 3870720.

The previous prime is 13999099. The next prime is 13999121. The reversal of 13999104 is 40199931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 451569 + ... + 451599.

Almost surely, 2^13999104 is an apocalyptic number.

13999104 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 13999104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24269232).

13999104 is an abundant number, since it is smaller than the sum of its proper divisors (34539360).

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

13999104 is a wasteful number, since it uses less digits than its factorization.

13999104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 13999104 is about 3741.5376518218. The cubic root of 13999104 is about 241.0090846710.

The spelling of 13999104 in words is "thirteen million, nine hundred ninety-nine thousand, one hundred four".