41638761 has 12 divisors (see below), whose sum is σ = 61280388. Its totient is φ = 27235104.

The previous prime is 41638759. The next prime is 41638769. The reversal of 41638761 is 16783614.

It can be written as a sum of positive squares in 2 ways, for example, as 35105625 + 6533136 = 5925^2 + 2556^2 .

It is not a de Polignac number, because 41638761 - 2¹ = 41638759 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41638769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43170 + ... + 44123.

It is an arithmetic number, because the mean of its divisors is an integer number (5106699).

Almost surely, 2^41638761 is an apocalyptic number.

It is an amenable number.

41638761 is a deficient number, since it is larger than the sum of its proper divisors (19641627).

41638761 is a wasteful number, since it uses less digits than its factorization.

41638761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87352 (or 87349 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 41638761 is about 6452.8103179932. The cubic root of 41638761 is about 346.6032250564.

The spelling of 41638761 in words is "forty-one million, six hundred thirty-eight thousand, seven hundred sixty-one".