41491566 has 24 divisors (see below), whose sum is σ = 90698400. Its totient is φ = 13707456.

The previous prime is 41491561. The next prime is 41491579. The reversal of 41491566 is 66519414.

41491566 is a `hidden beast` number, since 4 + 1 + 4 + 91 + 566 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 41491566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41491561) 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, 8166 + ... + 12233.

It is an arithmetic number, because the mean of its divisors is an integer number (3779100).

Almost surely, 2^41491566 is an apocalyptic number.

41491566 is an abundant number, since it is smaller than the sum of its proper divisors (49206834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41491566 is a wasteful number, since it uses less digits than its factorization.

41491566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520 (or 20517 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 41491566 is about 6441.3947247471. The cubic root of 41491566 is about 346.1943232211.

The spelling of 41491566 in words is "forty-one million, four hundred ninety-one thousand, five hundred sixty-six".