38655381 has 8 divisors (see below), whose sum is σ = 51577344. Its totient is φ = 25751840.

The previous prime is 38655377. The next prime is 38655431. The reversal of 38655381 is 18355683.

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

It is a cyclic number.

It is not a de Polignac number, because 38655381 - 2² = 38655377 is a prime.

It is a super-2 number, since 2×38655381² = 2988476960510322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38655781) 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, 1420 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (6447168).

Almost surely, 2^38655381 is an apocalyptic number.

It is an amenable number.

38655381 is a deficient number, since it is larger than the sum of its proper divisors (12921963).

38655381 is a wasteful number, since it uses less digits than its factorization.

38655381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211.

The product of its digits is 86400, while the sum is 39.

The square root of 38655381 is about 6217.3451729818. The cubic root of 38655381 is about 338.1193193570.

The spelling of 38655381 in words is "thirty-eight million, six hundred fifty-five thousand, three hundred eighty-one".