13650540 has 96 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 3417600.

The previous prime is 13650529. The next prime is 13650547. The reversal of 13650540 is 4505631.

It is a self number, because there is not a number n which added to its sum of digits gives 13650540.

It is not an unprimeable number, because it can be changed into a prime (13650547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76171 + ... + 76349.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^13650540 is an apocalyptic number.

13650540 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 13650540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20321280).

13650540 is an abundant number, since it is smaller than the sum of its proper divisors (26992020).

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

13650540 is a wasteful number, since it uses less digits than its factorization.

13650540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 13650540 is about 3694.6637194743. The cubic root of 13650540 is about 238.9919524843.

The spelling of 13650540 in words is "thirteen million, six hundred fifty thousand, five hundred forty".