41873581 has 4 divisors (see below), whose sum is σ = 41891872. Its totient is φ = 41855292.

The previous prime is 41873563. The next prime is 41873597. The reversal of 41873581 is 18537814.

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-41873581 is a prime.

It is a super-2 number, since 2×41873581² = 3506793571527122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41873581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41873561) 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, 5121 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (10472968).

Almost surely, 2^41873581 is an apocalyptic number.

It is an amenable number.

41873581 is a deficient number, since it is larger than the sum of its proper divisors (18291).

41873581 is a wasteful number, since it uses less digits than its factorization.

41873581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18290.

The product of its digits is 26880, while the sum is 37.

The square root of 41873581 is about 6470.9799103382. The cubic root of 41873581 is about 347.2535554027.

The spelling of 41873581 in words is "forty-one million, eight hundred seventy-three thousand, five hundred eighty-one".