41396581 has 4 divisors (see below), whose sum is σ = 43831692. Its totient is φ = 38961472.

The previous prime is 41396569. The next prime is 41396587. The reversal of 41396581 is 18569314.

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 32148900 + 9247681 = 5670^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 41396581 - 2⁵ = 41396549 is a prime.

It is a super-2 number, since 2×41396581² = 3427353836979122, 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 41396581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41396587) 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, 1217530 + ... + 1217563.

It is an arithmetic number, because the mean of its divisors is an integer number (10957923).

Almost surely, 2^41396581 is an apocalyptic number.

It is an amenable number.

41396581 is a deficient number, since it is larger than the sum of its proper divisors (2435111).

41396581 is a wasteful number, since it uses less digits than its factorization.

41396581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435110.

The product of its digits is 25920, while the sum is 37.

The square root of 41396581 is about 6434.0174852109. The cubic root of 41396581 is about 345.9299450537.

The spelling of 41396581 in words is "forty-one million, three hundred ninety-six thousand, five hundred eighty-one".