3825381 has 24 divisors (see below), whose sum is σ = 6057504. Its totient is φ = 2140320.

The previous prime is 3825379. The next prime is 3825397. The reversal of 3825381 is 1835283.

It is a happy number.

It is not a de Polignac number, because 3825381 - 2¹ = 3825379 is a prime.

It is a super-2 number, since 2×3825381² = 29267079590322, 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 (3825301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7546 + ... + 8036.

It is an arithmetic number, because the mean of its divisors is an integer number (252396).

Almost surely, 2^3825381 is an apocalyptic number.

It is an amenable number.

3825381 is a deficient number, since it is larger than the sum of its proper divisors (2232123).

3825381 is a wasteful number, since it uses less digits than its factorization.

3825381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 554 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 3825381 is about 1955.8581236889. The cubic root of 3825381 is about 156.3957326212.

The spelling of 3825381 in words is "three million, eight hundred twenty-five thousand, three hundred eighty-one".