13840148 has 36 divisors (see below), whose sum is σ = 28388052. Its totient is φ = 5886720.

The previous prime is 13840147. The next prime is 13840153. The reversal of 13840148 is 84104831.

13840148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11957764 + 1882384 = 3458^2 + 1372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13840148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13840147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47090 + ... + 47382.

It is an arithmetic number, because the mean of its divisors is an integer number (788557).

Almost surely, 2^13840148 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 13840148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14194026).

13840148 is an abundant number, since it is smaller than the sum of its proper divisors (14547904).

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

13840148 is a wasteful number, since it uses less digits than its factorization.

13840148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 13840148 is about 3720.2349388177. The cubic root of 13840148 is about 240.0934127113.

Adding to 13840148 its reverse (84104831), we get a palindrome (97944979).

The spelling of 13840148 in words is "thirteen million, eight hundred forty thousand, one hundred forty-eight".