14928381 has 20 divisors (see below), whose sum is σ = 24017532. Its totient is φ = 9186048.

The previous prime is 14928379. The next prime is 14928401. The reversal of 14928381 is 18382941.

It can be written as a sum of positive squares in 2 ways, for example, as 9865881 + 5062500 = 3141^2 + 2250^2 .

It is not a de Polignac number, because 14928381 - 2¹ = 14928379 is a prime.

It is a super-2 number, since 2×14928381² = 445713118562322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14928341) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6036 + ... + 8141.

Almost surely, 2^14928381 is an apocalyptic number.

It is an amenable number.

14928381 is a deficient number, since it is larger than the sum of its proper divisors (9089151).

14928381 is a wasteful number, since it uses less digits than its factorization.

14928381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14202 (or 14193 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 14928381 is about 3863.7263101830. The cubic root of 14928381 is about 246.2280752122.

The spelling of 14928381 in words is "fourteen million, nine hundred twenty-eight thousand, three hundred eighty-one".