13831560 has 96 divisors (see below), whose sum is σ = 46650240. Its totient is φ = 3685824.

The previous prime is 13831541. The next prime is 13831577. The reversal of 13831560 is 6513831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9009 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (485940).

Almost surely, 2^13831560 is an apocalyptic number.

13831560 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 13831560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23325120).

13831560 is an abundant number, since it is smaller than the sum of its proper divisors (32818680).

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

13831560 is a wasteful number, since it uses less digits than its factorization.

13831560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13831560 is about 3719.0805315293. The cubic root of 13831560 is about 240.0437420272.

The spelling of 13831560 in words is "thirteen million, eight hundred thirty-one thousand, five hundred sixty".