13220048 has 20 divisors (see below), whose sum is σ = 26962560. Its totient is φ = 6261984.

The previous prime is 13220047. The next prime is 13220057. The reversal of 13220048 is 84002231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21440 + ... + 22047.

It is an arithmetic number, because the mean of its divisors is an integer number (1348128).

Almost surely, 2^13220048 is an apocalyptic number.

It is an amenable number.

13220048 is an abundant number, since it is smaller than the sum of its proper divisors (13742512).

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

13220048 is a wasteful number, since it uses less digits than its factorization.

13220048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43514 (or 43508 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 13220048 is about 3635.9383933175. The cubic root of 13220048 is about 236.4527362132.

Adding to 13220048 its reverse (84002231), we get a palindrome (97222279).

The spelling of 13220048 in words is "thirteen million, two hundred twenty thousand, forty-eight".