3858381 has 8 divisors (see below), whose sum is σ = 5716160. Its totient is φ = 2572236.

The previous prime is 3858367. The next prime is 3858401. The reversal of 3858381 is 1838583.

It is a happy number.

It is not a de Polignac number, because 3858381 - 2⁶ = 3858317 is a prime.

It is a super-2 number, since 2×3858381² = 29774207882322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

3858381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71425 + ... + 71478.

It is an arithmetic number, because the mean of its divisors is an integer number (714520).

Almost surely, 2^3858381 is an apocalyptic number.

It is an amenable number.

3858381 is a deficient number, since it is larger than the sum of its proper divisors (1857779).

3858381 is a wasteful number, since it uses less digits than its factorization.

3858381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142912 (or 142906 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 3858381 is about 1964.2762025744. The cubic root of 3858381 is about 156.8441663077.

The spelling of 3858381 in words is "three million, eight hundred fifty-eight thousand, three hundred eighty-one".