13841520 has 240 divisors, whose sum is σ = 54960768. Its totient is φ = 2849280.

The previous prime is 13841507. The next prime is 13841537. The reversal of 13841520 is 2514831.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 129307 + ... + 129413.

Almost surely, 2^13841520 is an apocalyptic number.

13841520 is a gapful number since it is divisible by the number (10) 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 13841520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27480384).

13841520 is an abundant number, since it is smaller than the sum of its proper divisors (41119248).

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

13841520 is a wasteful number, since it uses less digits than its factorization.

13841520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13841520 is about 3720.4193312045. The cubic root of 13841520 is about 240.1013460869.

The spelling of 13841520 in words is "thirteen million, eight hundred forty-one thousand, five hundred twenty".