13203648 has 98 divisors (see below), whose sum is σ = 39422324. Its totient is φ = 4385664.

The previous prime is 13203643. The next prime is 13203653. The reversal of 13203648 is 84630231.

It is a happy number.

13203648 is a `hidden beast` number, since 13 + 2 + 0 + 3 + 648 = 666.

It is an interprime number because it is at equal distance from previous prime (13203643) and next prime (13203653).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13203643) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 46515 + ... + 46797.

Almost surely, 2^13203648 is an apocalyptic number.

13203648 is a gapful number since it is divisible by the number (18) 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 13203648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19711162).

13203648 is an abundant number, since it is smaller than the sum of its proper divisors (26218676).

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

13203648 is an frugal number, since it uses more digits than its factorization.

13203648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13203648 is about 3633.6824297123. The cubic root of 13203648 is about 236.3549193845.

Adding to 13203648 its reverse (84630231), we get a palindrome (97833879).

The spelling of 13203648 in words is "thirteen million, two hundred three thousand, six hundred forty-eight".