13040048 has 40 divisors (see below), whose sum is σ = 29084448. Its totient is φ = 5548032.

The previous prime is 13040029. The next prime is 13040059. The reversal of 13040048 is 84004031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19040 + ... + 19712.

Almost surely, 2^13040048 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 13040048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14542224).

13040048 is an abundant number, since it is smaller than the sum of its proper divisors (16044400).

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

13040048 is a wasteful number, since it uses less digits than its factorization.

13040048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 855 counting only the distinct ones).

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

The square root of 13040048 is about 3611.1006632327. The cubic root of 13040048 is about 235.3746731825.

Adding to 13040048 its reverse (84004031), we get a palindrome (97044079).

The spelling of 13040048 in words is "thirteen million, forty thousand, forty-eight".