4038381 has 12 divisors (see below), whose sum is σ = 5957952. Its totient is φ = 2634696.

The previous prime is 4038379. The next prime is 4038403. The reversal of 4038381 is 1838304.

It is not a de Polignac number, because 4038381 - 2¹ = 4038379 is a prime.

It is a super-2 number, since 2×4038381² = 32617042202322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4038301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4351 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (496496).

Almost surely, 2^4038381 is an apocalyptic number.

It is an amenable number.

4038381 is a deficient number, since it is larger than the sum of its proper divisors (1919571).

4038381 is a wasteful number, since it uses less digits than its factorization.

4038381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600 (or 9597 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4038381 is about 2009.5723425645. The cubic root of 4038381 is about 159.2462069059.

The spelling of 4038381 in words is "four million, thirty-eight thousand, three hundred eighty-one".