13910040 has 48 divisors (see below), whose sum is σ = 45208800. Its totient is φ = 3709248.

The previous prime is 13910003. The next prime is 13910051. The reversal of 13910040 is 4001931.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13909995 and 13910022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18960 + ... + 19679.

It is an arithmetic number, because the mean of its divisors is an integer number (941850).

Almost surely, 2^13910040 is an apocalyptic number.

13910040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13910040 is an abundant number, since it is smaller than the sum of its proper divisors (31298760).

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

13910040 is a wasteful number, since it uses less digits than its factorization.

13910040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38656 (or 38649 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13910040 is about 3729.6166022796. The cubic root of 13910040 is about 240.4968872196.

Adding to 13910040 its reverse (4001931), we get a palindrome (17911971).

The spelling of 13910040 in words is "thirteen million, nine hundred ten thousand, forty".