41812381 has 4 divisors (see below), whose sum is σ = 45028732. Its totient is φ = 38596032.

The previous prime is 41812363. The next prime is 41812387. The reversal of 41812381 is 18321814.

41812381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9424900 + 32387481 = 3070^2 + 5691^2 .

It is a cyclic number.

It is not a de Polignac number, because 41812381 - 2⁵ = 41812349 is a prime.

It is a super-2 number, since 2×41812381² = 3496550409778322, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41812387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608156 + ... + 1608181.

It is an arithmetic number, because the mean of its divisors is an integer number (11257183).

Almost surely, 2^41812381 is an apocalyptic number.

It is an amenable number.

41812381 is a deficient number, since it is larger than the sum of its proper divisors (3216351).

41812381 is a wasteful number, since it uses less digits than its factorization.

41812381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216350.

The product of its digits is 1536, while the sum is 28.

The square root of 41812381 is about 6466.2493765706. The cubic root of 41812381 is about 347.0842976908.

The spelling of 41812381 in words is "forty-one million, eight hundred twelve thousand, three hundred eighty-one".