3824381 has 4 divisors (see below), whose sum is σ = 4172064. Its totient is φ = 3476700.

The previous prime is 3824347. The next prime is 3824413. The reversal of 3824381 is 1834283.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-3824381 is a prime.

It is a super-2 number, since 2×3824381² = 29251780066322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3824281) 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, 173825 + ... + 173846.

It is an arithmetic number, because the mean of its divisors is an integer number (1043016).

Almost surely, 2^3824381 is an apocalyptic number.

It is an amenable number.

3824381 is a deficient number, since it is larger than the sum of its proper divisors (347683).

3824381 is a wasteful number, since it uses less digits than its factorization.

3824381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347682.

The product of its digits is 4608, while the sum is 29.

The square root of 3824381 is about 1955.6024647152. The cubic root of 3824381 is about 156.3821035333.

The spelling of 3824381 in words is "three million, eight hundred twenty-four thousand, three hundred eighty-one".