41666431 has 4 divisors (see below), whose sum is σ = 41698152. Its totient is φ = 41634712.

The previous prime is 41666389. The next prime is 41666437. The reversal of 41666431 is 13466614.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41666431 - 2¹¹ = 41664383 is a prime.

It is a super-2 number, since 2×41666431² = 3472182944555522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41666393 and 41666402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41666437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13801 + ... + 16546.

It is an arithmetic number, because the mean of its divisors is an integer number (10424538).

Almost surely, 2^41666431 is an apocalyptic number.

41666431 is a deficient number, since it is larger than the sum of its proper divisors (31721).

41666431 is a wasteful number, since it uses less digits than its factorization.

41666431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31720.

The product of its digits is 10368, while the sum is 31.

The square root of 41666431 is about 6454.9539889917. The cubic root of 41666431 is about 346.6799835655.

The spelling of 41666431 in words is "forty-one million, six hundred sixty-six thousand, four hundred thirty-one".