13566448 has 40 divisors (see below), whose sum is σ = 30399840. Its totient is φ = 5744640.

The previous prime is 13566431. The next prime is 13566451. The reversal of 13566448 is 84466531.

It is a happy number.

It is a super-2 number, since 2×13566448² = 368097022673408, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

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, 9288 + ... + 10648.

It is an arithmetic number, because the mean of its divisors is an integer number (759996).

Almost surely, 2^13566448 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 13566448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15199920).

13566448 is an abundant number, since it is smaller than the sum of its proper divisors (16833392).

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

13566448 is a wasteful number, since it uses less digits than its factorization.

13566448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1459 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 13566448 is about 3683.2659420683. The cubic root of 13566448 is about 238.5001838592.

The spelling of 13566448 in words is "thirteen million, five hundred sixty-six thousand, four hundred forty-eight".