41581965 has 8 divisors (see below), whose sum is σ = 66531168. Its totient is φ = 22177040.

The previous prime is 41581919. The next prime is 41581987. The reversal of 41581965 is 56918514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 41581965 - 2⁶ = 41581901 is a prime.

It is a super-2 number, since 2×41581965² = 3458119626522450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386051 + ... + 1386080.

It is an arithmetic number, because the mean of its divisors is an integer number (8316396).

Almost surely, 2^41581965 is an apocalyptic number.

It is an amenable number.

41581965 is a deficient number, since it is larger than the sum of its proper divisors (24949203).

41581965 is a wasteful number, since it uses less digits than its factorization.

41581965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772139.

The product of its digits is 43200, while the sum is 39.

The square root of 41581965 is about 6448.4079430507. The cubic root of 41581965 is about 346.4455623913.

The spelling of 41581965 in words is "forty-one million, five hundred eighty-one thousand, nine hundred sixty-five".