13758381 has 48 divisors (see below), whose sum is σ = 24845184. Its totient is φ = 7143552.

The previous prime is 13758379. The next prime is 13758397. The reversal of 13758381 is 18385731.

It is not a de Polignac number, because 13758381 - 2¹ = 13758379 is a prime.

It is a super-2 number, since 2×13758381² = 378586095482322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13758331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87555 + ... + 87711.

It is an arithmetic number, because the mean of its divisors is an integer number (517608).

Almost surely, 2^13758381 is an apocalyptic number.

It is an amenable number.

13758381 is a deficient number, since it is larger than the sum of its proper divisors (11086803).

13758381 is a wasteful number, since it uses less digits than its factorization.

13758381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 287 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 13758381 is about 3709.2291652040. The cubic root of 13758381 is about 239.6196579849.

The spelling of 13758381 in words is "thirteen million, seven hundred fifty-eight thousand, three hundred eighty-one".