13756540 has 48 divisors (see below), whose sum is σ = 33388992. Its totient is φ = 4663296.

The previous prime is 13756493. The next prime is 13756541. The reversal of 13756540 is 4565731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13756541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13074 + ... + 14086.

It is an arithmetic number, because the mean of its divisors is an integer number (695604).

Almost surely, 2^13756540 is an apocalyptic number.

13756540 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 13756540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16694496).

13756540 is an abundant number, since it is smaller than the sum of its proper divisors (19632452).

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

13756540 is a wasteful number, since it uses less digits than its factorization.

13756540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 13756540 is about 3708.9809921325. The cubic root of 13756540 is about 239.6089697247.

The spelling of 13756540 in words is "thirteen million, seven hundred fifty-six thousand, five hundred forty".