13955920 has 40 divisors (see below), whose sum is σ = 35399520. Its totient is φ = 5074560.

The previous prime is 13955911. The next prime is 13955957. The reversal of 13955920 is 2955931.

It is a happy number.

13955920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 7050 + ... + 8809.

It is an arithmetic number, because the mean of its divisors is an integer number (884988).

Almost surely, 2^13955920 is an apocalyptic number.

13955920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13955920 is an abundant number, since it is smaller than the sum of its proper divisors (21443600).

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

13955920 is a wasteful number, since it uses less digits than its factorization.

13955920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15883 (or 15877 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 13955920 is about 3735.7623050724. The cubic root of 13955920 is about 240.7610103059.

The spelling of 13955920 in words is "thirteen million, nine hundred fifty-five thousand, nine hundred twenty".