41813381 has 4 divisors (see below), whose sum is σ = 42197100. Its totient is φ = 41429664.

The previous prime is 41813371. The next prime is 41813383. The reversal of 41813381 is 18331814.

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 29528356 + 12285025 = 5434^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 41813381 - 2¹⁰ = 41812357 is a prime.

It is a super-2 number, since 2×41813381² = 3496717661302322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41813383) 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, 191696 + ... + 191913.

It is an arithmetic number, because the mean of its divisors is an integer number (10549275).

Almost surely, 2^41813381 is an apocalyptic number.

It is an amenable number.

41813381 is a deficient number, since it is larger than the sum of its proper divisors (383719).

41813381 is a wasteful number, since it uses less digits than its factorization.

41813381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383718.

The product of its digits is 2304, while the sum is 29.

The square root of 41813381 is about 6466.3267006856. The cubic root of 41813381 is about 347.0870646665.

The spelling of 41813381 in words is "forty-one million, eight hundred thirteen thousand, three hundred eighty-one".