14649381 has 12 divisors (see below), whose sum is σ = 21367008. Its totient is φ = 9670824.

The previous prime is 14649377. The next prime is 14649389. The reversal of 14649381 is 18394641.

14649381 is a `hidden beast` number, since 1 + 4 + 649 + 3 + 8 + 1 = 666.

14649381 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 14649381 - 2² = 14649377 is a prime.

It is a super-2 number, since 2×14649381² = 429208727366322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14649389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6975 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (1780584).

Almost surely, 2^14649381 is an apocalyptic number.

It is an amenable number.

14649381 is a deficient number, since it is larger than the sum of its proper divisors (6717627).

14649381 is a wasteful number, since it uses less digits than its factorization.

14649381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912 (or 15909 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 14649381 is about 3827.4509794379. The cubic root of 14649381 is about 244.6844806907.

The spelling of 14649381 in words is "fourteen million, six hundred forty-nine thousand, three hundred eighty-one".