13840930 has 32 divisors (see below), whose sum is σ = 26530560. Its totient is φ = 5184000.

The previous prime is 13840919. The next prime is 13840933. The reversal of 13840930 is 3904831.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13840933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18055 + ... + 18805.

It is an arithmetic number, because the mean of its divisors is an integer number (829080).

Almost surely, 2^13840930 is an apocalyptic number.

13840930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13840930 is a deficient number, since it is larger than the sum of its proper divisors (12689630).

13840930 is a wasteful number, since it uses less digits than its factorization.

13840930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13840930 is about 3720.3400382223. The cubic root of 13840930 is about 240.0979345684.

The spelling of 13840930 in words is "thirteen million, eight hundred forty thousand, nine hundred thirty".