13941040 has 20 divisors (see below), whose sum is σ = 32413104. Its totient is φ = 5576384.

The previous prime is 13941023. The next prime is 13941043. The reversal of 13941040 is 4014931.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (13941043) 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, 87052 + ... + 87211.

Almost surely, 2^13941040 is an apocalyptic number.

13941040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13941040 is an abundant number, since it is smaller than the sum of its proper divisors (18472064).

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

13941040 is a wasteful number, since it uses less digits than its factorization.

13941040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174276 (or 174270 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13941040 is about 3733.7702125332. The cubic root of 13941040 is about 240.6754122745.

Adding to 13941040 its reverse (4014931), we get a palindrome (17955971).

The spelling of 13941040 in words is "thirteen million, nine hundred forty-one thousand, forty".