13923456 has 64 divisors (see below), whose sum is σ = 37454400. Its totient is φ = 4582400.

The previous prime is 13923439. The next prime is 13923457. The reversal of 13923456 is 65432931.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13923457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38605 + ... + 38963.

It is an arithmetic number, because the mean of its divisors is an integer number (585225).

Almost surely, 2^13923456 is an apocalyptic number.

13923456 is a gapful number since it is divisible by the number (16) 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 13923456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18727200).

13923456 is an abundant number, since it is smaller than the sum of its proper divisors (23530944).

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

13923456 is a wasteful number, since it uses less digits than its factorization.

13923456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 465 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 13923456 is about 3731.4147451067. The cubic root of 13923456 is about 240.5741807786.

The spelling of 13923456 in words is "thirteen million, nine hundred twenty-three thousand, four hundred fifty-six".