40686041 has 8 divisors (see below), whose sum is σ = 45417504. Its totient is φ = 36126720.

The previous prime is 40686031. The next prime is 40686047. The reversal of 40686041 is 14068604.

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 40686041 - 2¹⁸ = 40423897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40685995 and 40686013.

It is not an unprimeable number, because it can be changed into a prime (40686047) 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, 42536 + ... + 43481.

It is an arithmetic number, because the mean of its divisors is an integer number (5677188).

Almost surely, 2^40686041 is an apocalyptic number.

It is an amenable number.

40686041 is a deficient number, since it is larger than the sum of its proper divisors (4731463).

40686041 is a wasteful number, since it uses less digits than its factorization.

40686041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86071.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40686041 is about 6378.5610446244. The cubic root of 40686041 is about 343.9393061525.

The spelling of 40686041 in words is "forty million, six hundred eighty-six thousand, forty-one".