38330381 has 4 divisors (see below), whose sum is σ = 38413632. Its totient is φ = 38247132.

The previous prime is 38330377. The next prime is 38330401. The reversal of 38330381 is 18303383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18303383 = 7 ⋅2614769.

It is a cyclic number.

It is not a de Polignac number, because 38330381 - 2² = 38330377 is a prime.

It is a super-2 number, since 2×38330381² = 2938436215210322, 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 (38330311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40931 + ... + 41856.

It is an arithmetic number, because the mean of its divisors is an integer number (9603408).

Almost surely, 2^38330381 is an apocalyptic number.

It is an amenable number.

38330381 is a deficient number, since it is larger than the sum of its proper divisors (83251).

38330381 is an equidigital number, since it uses as much as digits as its factorization.

38330381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83250.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 38330381 is about 6191.1534466527. The cubic root of 38330381 is about 337.1690575783.

The spelling of 38330381 in words is "thirty-eight million, three hundred thirty thousand, three hundred eighty-one".