14403681 has 24 divisors (see below), whose sum is σ = 21902400. Its totient is φ = 9103776.

The previous prime is 14403679. The next prime is 14403689. The reversal of 14403681 is 18630441.

14403681 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14403681 - 2¹ = 14403679 is a prime.

It is a super-2 number, since 2×14403681² = 414932052699522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14403689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30610 + ... + 31076.

It is an arithmetic number, because the mean of its divisors is an integer number (912600).

Almost surely, 2^14403681 is an apocalyptic number.

It is an amenable number.

14403681 is a deficient number, since it is larger than the sum of its proper divisors (7498719).

14403681 is a wasteful number, since it uses less digits than its factorization.

14403681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 642 counting only the distinct ones).

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

The square root of 14403681 is about 3795.2181755467. The cubic root of 14403681 is about 243.3088082286.

The spelling of 14403681 in words is "fourteen million, four hundred three thousand, six hundred eighty-one".