38107381 has 8 divisors (see below), whose sum is σ = 41416760. Its totient is φ = 34852032.

The previous prime is 38107379. The next prime is 38107393. The reversal of 38107381 is 18370183.

It can be written as a sum of positive squares in 4 ways, for example, as 11492100 + 26615281 = 3390^2 + 5159^2 .

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 38107381 - 2¹ = 38107379 is a prime.

It is a super-2 number, since 2×38107381² = 2904344973358322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38101381) 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, 12030 + ... + 14863.

It is an arithmetic number, because the mean of its divisors is an integer number (5177095).

Almost surely, 2^38107381 is an apocalyptic number.

It is an amenable number.

38107381 is a deficient number, since it is larger than the sum of its proper divisors (3309379).

38107381 is a wasteful number, since it uses less digits than its factorization.

38107381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27015.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 38107381 is about 6173.1176078218. The cubic root of 38107381 is about 336.5139202962.

The spelling of 38107381 in words is "thirty-eight million, one hundred seven thousand, three hundred eighty-one".