38532381 has 4 divisors (see below), whose sum is σ = 51376512. Its totient is φ = 25688252.

The previous prime is 38532371. The next prime is 38532391. The reversal of 38532381 is 18323583.

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: 18323583 = 3 ⋅6107861.

It is an interprime number because it is at equal distance from previous prime (38532371) and next prime (38532391).

It is a cyclic number.

It is not a de Polignac number, because 38532381 - 2⁶ = 38532317 is a prime.

It is a super-2 number, since 2×38532381² = 2969488771058322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38532311) 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, 6422061 + ... + 6422066.

It is an arithmetic number, because the mean of its divisors is an integer number (12844128).

Almost surely, 2^38532381 is an apocalyptic number.

It is an amenable number.

38532381 is a deficient number, since it is larger than the sum of its proper divisors (12844131).

38532381 is a wasteful number, since it uses less digits than its factorization.

38532381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844130.

The product of its digits is 17280, while the sum is 33.

The square root of 38532381 is about 6207.4456099107. The cubic root of 38532381 is about 337.7603105588.

The spelling of 38532381 in words is "thirty-eight million, five hundred thirty-two thousand, three hundred eighty-one".