41381891 has 4 divisors (see below), whose sum is σ = 41880552. Its totient is φ = 40883232.

The previous prime is 41381881. The next prime is 41381897. The reversal of 41381891 is 19818314.

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

It is a cyclic number.

It is not a de Polignac number, because 41381891 - 2⁶ = 41381827 is a prime.

It is a super-3 number, since 3×41381891³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41381897) 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, 249206 + ... + 249371.

It is an arithmetic number, because the mean of its divisors is an integer number (10470138).

Almost surely, 2^41381891 is an apocalyptic number.

41381891 is a deficient number, since it is larger than the sum of its proper divisors (498661).

41381891 is an equidigital number, since it uses as much as digits as its factorization.

41381891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498660.

The product of its digits is 6912, while the sum is 35.

The square root of 41381891 is about 6432.8757954744. The cubic root of 41381891 is about 345.8890212867.

The spelling of 41381891 in words is "forty-one million, three hundred eighty-one thousand, eight hundred ninety-one".