13518940 has 24 divisors (see below), whose sum is σ = 29625120. Its totient is φ = 5172288.

The previous prime is 13518887. The next prime is 13518977. The reversal of 13518940 is 4981531.

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 7 ways as a sum of consecutive naturals, for example, 14235 + ... + 15154.

It is an arithmetic number, because the mean of its divisors is an integer number (1234380).

Almost surely, 2^13518940 is an apocalyptic number.

13518940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13518940 is an abundant number, since it is smaller than the sum of its proper divisors (16106180).

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

13518940 is a wasteful number, since it uses less digits than its factorization.

13518940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29421 (or 29419 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13518940 is about 3676.8111183470. The cubic root of 13518940 is about 238.2214590051.

The spelling of 13518940 in words is "thirteen million, five hundred eighteen thousand, nine hundred forty".