41718681 has 9 divisors (see below), whose sum is σ = 60288319. Its totient is φ = 27799536.

The previous prime is 41718679. The next prime is 41718713. The reversal of 41718681 is 18681714.

The square root of 41718681 is 6459.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3080025 + 38638656 = 1755^2 + 6216^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 41718681 - 2¹ = 41718679 is a prime.

It is a super-2 number, since 2×41718681² = 3480896688759522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41718631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18301 + ... + 20453.

Almost surely, 2^41718681 is an apocalyptic number.

41718681 is the 6459-th square number.

41718681 is the 3230-th centered octagonal number.

It is an amenable number.

41718681 is a deficient number, since it is larger than the sum of its proper divisors (18569638).

41718681 is an frugal number, since it uses more digits than its factorization.

41718681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 2156 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The cubic root of 41718681 is about 346.8248360864.

Multiplying 41718681 by its sum of digits (36), we get a square (1501872516 = 38754²).

The spelling of 41718681 in words is "forty-one million, seven hundred eighteen thousand, six hundred eighty-one".