41845621 has 4 divisors (see below), whose sum is σ = 41895532. Its totient is φ = 41795712.

The previous prime is 41845603. The next prime is 41845663. The reversal of 41845621 is 12654814.

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 16695396 + 25150225 = 4086^2 + 5015^2 .

It is a cyclic number.

It is not a de Polignac number, because 41845621 - 2¹¹ = 41843573 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 (41845421) 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, 23676 + ... + 25381.

It is an arithmetic number, because the mean of its divisors is an integer number (10473883).

Almost surely, 2^41845621 is an apocalyptic number.

It is an amenable number.

41845621 is a deficient number, since it is larger than the sum of its proper divisors (49911).

41845621 is an equidigital number, since it uses as much as digits as its factorization.

41845621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49910.

The product of its digits is 7680, while the sum is 31.

The square root of 41845621 is about 6468.8191348963. The cubic root of 41845621 is about 347.1762483354.

The spelling of 41845621 in words is "forty-one million, eight hundred forty-five thousand, six hundred twenty-one".