41641813 has 4 divisors (see below), whose sum is σ = 41697580. Its totient is φ = 41586048.

The previous prime is 41641807. The next prime is 41641819. The reversal of 41641813 is 31814614.

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

It is an interprime number because it is at equal distance from previous prime (41641807) and next prime (41641819).

It can be written as a sum of positive squares in 2 ways, for example, as 29517489 + 12124324 = 5433^2 + 3482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41641813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41641819) 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, 26748 + ... + 28261.

It is an arithmetic number, because the mean of its divisors is an integer number (10424395).

Almost surely, 2^41641813 is an apocalyptic number.

It is an amenable number.

41641813 is a deficient number, since it is larger than the sum of its proper divisors (55767).

41641813 is an equidigital number, since it uses as much as digits as its factorization.

41641813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55766.

The product of its digits is 2304, while the sum is 28.

The square root of 41641813 is about 6453.0467997683. The cubic root of 41641813 is about 346.6116931854.

The spelling of 41641813 in words is "forty-one million, six hundred forty-one thousand, eight hundred thirteen".