41623641 has 6 divisors (see below), whose sum is σ = 60123050. Its totient is φ = 27749088.

The previous prime is 41623601. The next prime is 41623649. The reversal of 41623641 is 14632614.

41623641 is a `hidden beast` number, since 4 + 16 + 2 + 3 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41332041 + 291600 = 6429^2 + 540^2 .

It is not a de Polignac number, because 41623641 - 2⁶ = 41623577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41623649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2312416 + ... + 2312433.

Almost surely, 2^41623641 is an apocalyptic number.

It is an amenable number.

41623641 is a deficient number, since it is larger than the sum of its proper divisors (18499409).

41623641 is a wasteful number, since it uses less digits than its factorization.

41623641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624855 (or 4624852 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 41623641 is about 6451.6386290616. The cubic root of 41623641 is about 346.5612667537.

The spelling of 41623641 in words is "forty-one million, six hundred twenty-three thousand, six hundred forty-one".