3810381 has 16 divisors (see below), whose sum is σ = 5228544. Its totient is φ = 2467584.

The previous prime is 3810379. The next prime is 3810383. The reversal of 3810381 is 1830183.

It is an interprime number because it is at equal distance from previous prime (3810379) and next prime (3810383).

It is not a de Polignac number, because 3810381 - 2¹ = 3810379 is a prime.

It is a super-2 number, since 2×3810381² = 29038006730322, which contains 22 as substring.

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

3810381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3810383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27745 + ... + 27881.

It is an arithmetic number, because the mean of its divisors is an integer number (326784).

Almost surely, 2^3810381 is an apocalyptic number.

It is an amenable number.

3810381 is a deficient number, since it is larger than the sum of its proper divisors (1418163).

3810381 is a wasteful number, since it uses less digits than its factorization.

3810381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 3810381 is about 1952.0197232610. The cubic root of 3810381 is about 156.1910463461.

The spelling of 3810381 in words is "three million, eight hundred ten thousand, three hundred eighty-one".