417961866 has 24 divisors (see below), whose sum is σ = 972401760. Its totient is φ = 119417592.

The previous prime is 417961861. The next prime is 417961883. The reversal of 417961866 is 668169714.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (417961861) 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, 710526 + ... + 711113.

It is an arithmetic number, because the mean of its divisors is an integer number (40516740).

Almost surely, 2^417961866 is an apocalyptic number.

417961866 is an abundant number, since it is smaller than the sum of its proper divisors (554439894).

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

417961866 is a wasteful number, since it uses less digits than its factorization.

417961866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421658 (or 1421651 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 417961866 is about 20444.1156815354. The cubic root of 417961866 is about 747.6738989077.

The spelling of 417961866 in words is "four hundred seventeen million, nine hundred sixty-one thousand, eight hundred sixty-six".