38397381 has 8 divisors (see below), whose sum is σ = 55850784. Its totient is φ = 23271120.

The previous prime is 38397371. The next prime is 38397383. The reversal of 38397381 is 18379383.

38397381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38397381 - 2⁷ = 38397253 is a prime.

It is a super-2 number, since 2×38397381² = 2948717735318322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38397383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581746 + ... + 581811.

It is an arithmetic number, because the mean of its divisors is an integer number (6981348).

Almost surely, 2^38397381 is an apocalyptic number.

It is an amenable number.

38397381 is a deficient number, since it is larger than the sum of its proper divisors (17453403).

38397381 is a wasteful number, since it uses less digits than its factorization.

38397381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163571.

The product of its digits is 108864, while the sum is 42.

The square root of 38397381 is about 6196.5620306748. The cubic root of 38397381 is about 337.3653959805.

The spelling of 38397381 in words is "thirty-eight million, three hundred ninety-seven thousand, three hundred eighty-one".