38043381 has 4 divisors (see below), whose sum is σ = 50724512. Its totient is φ = 25362252.

The previous prime is 38043361. The next prime is 38043409. The reversal of 38043381 is 18334083.

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.

It is not a de Polignac number, because 38043381 - 2⁵ = 38043349 is a prime.

It is a super-3 number, since 3×38043381³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38043361) 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, 6340561 + ... + 6340566.

It is an arithmetic number, because the mean of its divisors is an integer number (12681128).

Almost surely, 2^38043381 is an apocalyptic number.

It is an amenable number.

38043381 is a deficient number, since it is larger than the sum of its proper divisors (12681131).

38043381 is a wasteful number, since it uses less digits than its factorization.

38043381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12681130.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 38043381 is about 6167.9316630456. The cubic root of 38043381 is about 336.3254269876.

The spelling of 38043381 in words is "thirty-eight million, forty-three thousand, three hundred eighty-one".