13744381 has 8 divisors (see below), whose sum is σ = 16632000. Its totient is φ = 11087808.

The previous prime is 13744369. The next prime is 13744399. The reversal of 13744381 is 18344731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13744381 - 2⁵ = 13744349 is a prime.

It is a super-2 number, since 2×13744381² = 377816018146322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13744781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57631 + ... + 57868.

It is an arithmetic number, because the mean of its divisors is an integer number (2079000).

Almost surely, 2^13744381 is an apocalyptic number.

It is an amenable number.

13744381 is a deficient number, since it is larger than the sum of its proper divisors (2887619).

13744381 is a wasteful number, since it uses less digits than its factorization.

13744381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115523.

The product of its digits is 8064, while the sum is 31.

The square root of 13744381 is about 3707.3415003207. The cubic root of 13744381 is about 239.5383544817.

The spelling of 13744381 in words is "thirteen million, seven hundred forty-four thousand, three hundred eighty-one".