41681681 has 8 divisors (see below), whose sum is σ = 43576704. Its totient is φ = 39793600.

The previous prime is 41681677. The next prime is 41681683. The reversal of 41681681 is 18618614.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41681681 - 2² = 41681677 is a prime.

It is a super-2 number, since 2×41681681² = 3474725061971522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41681683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13481 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (5447088).

Almost surely, 2^41681681 is an apocalyptic number.

It is an amenable number.

41681681 is a deficient number, since it is larger than the sum of its proper divisors (1895023).

41681681 is a wasteful number, since it uses less digits than its factorization.

41681681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471.

The product of its digits is 9216, while the sum is 35.

The square root of 41681681 is about 6456.1351441865. The cubic root of 41681681 is about 346.7222736037.

The spelling of 41681681 in words is "forty-one million, six hundred eighty-one thousand, six hundred eighty-one".