13168940 has 12 divisors (see below), whose sum is σ = 27654816. Its totient is φ = 5267568.

The previous prime is 13168921. The next prime is 13168943. The reversal of 13168940 is 4986131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13168897 and 13168906.

It is not an unprimeable number, because it can be changed into a prime (13168943) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 329204 + ... + 329243.

It is an arithmetic number, because the mean of its divisors is an integer number (2304568).

Almost surely, 2^13168940 is an apocalyptic number.

13168940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13168940 is an abundant number, since it is smaller than the sum of its proper divisors (14485876).

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

13168940 is a wasteful number, since it uses less digits than its factorization.

13168940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658456 (or 658454 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13168940 is about 3628.9034156340. The cubic root of 13168940 is about 236.1476381577.

The spelling of 13168940 in words is "thirteen million, one hundred sixty-eight thousand, nine hundred forty".