3838422381 has 4 divisors (see below), whose sum is σ = 5117896512. Its totient is φ = 2558948252.

The previous prime is 3838422353. The next prime is 3838422383. The reversal of 3838422381 is 1832248383.

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 a cyclic number.

It is not a de Polignac number, because 3838422381 - 2⁶ = 3838422317 is a prime.

It is a super-2 number, since 2×3838422381² = 29466972749923418322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838422383) 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, 639737061 + ... + 639737066.

It is an arithmetic number, because the mean of its divisors is an integer number (1279474128).

Almost surely, 2^3838422381 is an apocalyptic number.

It is an amenable number.

3838422381 is a deficient number, since it is larger than the sum of its proper divisors (1279474131).

3838422381 is a wasteful number, since it uses less digits than its factorization.

3838422381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279474130.

The product of its digits is 221184, while the sum is 42.

The square root of 3838422381 is about 61955.0028730530. The cubic root of 3838422381 is about 1565.7325767603.

The spelling of 3838422381 in words is "three billion, eight hundred thirty-eight million, four hundred twenty-two thousand, three hundred eighty-one".