13655904 has 48 divisors (see below), whose sum is σ = 36469440. Its totient is φ = 4472960.

The previous prime is 13655881. The next prime is 13655933. The reversal of 13655904 is 40955631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4459 + ... + 6869.

It is an arithmetic number, because the mean of its divisors is an integer number (759780).

Almost surely, 2^13655904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13655904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18234720).

13655904 is an abundant number, since it is smaller than the sum of its proper divisors (22813536).

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

13655904 is a wasteful number, since it uses less digits than its factorization.

13655904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 13655904 is about 3695.3895599788. The cubic root of 13655904 is about 239.0232524659.

The spelling of 13655904 in words is "thirteen million, six hundred fifty-five thousand, nine hundred four".