13885240 has 16 divisors (see below), whose sum is σ = 31241880. Its totient is φ = 5554080.

The previous prime is 13885213. The next prime is 13885253. The reversal of 13885240 is 4258831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173526 + ... + 173605.

Almost surely, 2^13885240 is an apocalyptic number.

13885240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13885240 is an abundant number, since it is smaller than the sum of its proper divisors (17356640).

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

13885240 is a wasteful number, since it uses less digits than its factorization.

13885240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347142 (or 347138 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 13885240 is about 3726.2903805259. The cubic root of 13885240 is about 240.3538761071.

The spelling of 13885240 in words is "thirteen million, eight hundred eighty-five thousand, two hundred forty".