13168440 has 128 divisors (see below), whose sum is σ = 44712000. Its totient is φ = 3446784.

The previous prime is 13168417. The next prime is 13168453. The reversal of 13168440 is 4486131.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96052 + ... + 96188.

Almost surely, 2^13168440 is an apocalyptic number.

13168440 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 13168440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22356000).

13168440 is an abundant number, since it is smaller than the sum of its proper divisors (31543560).

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

13168440 is a wasteful number, since it uses less digits than its factorization.

13168440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 13168440 is about 3628.8345236453. The cubic root of 13168440 is about 236.1446494253.

The spelling of 13168440 in words is "thirteen million, one hundred sixty-eight thousand, four hundred forty".