417985172 has 24 divisors (see below), whose sum is σ = 801998400. Its totient is φ = 189034560.

The previous prime is 417985153. The next prime is 417985177. The reversal of 417985172 is 271589714.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417985177) 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, 15113 + ... + 32624.

It is an arithmetic number, because the mean of its divisors is an integer number (33416600).

Almost surely, 2^417985172 is an apocalyptic number.

It is an amenable number.

417985172 is a deficient number, since it is larger than the sum of its proper divisors (384013228).

417985172 is a wasteful number, since it uses less digits than its factorization.

417985172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47951 (or 47949 counting only the distinct ones).

The product of its digits is 141120, while the sum is 44.

The square root of 417985172 is about 20444.6856664513. The cubic root of 417985172 is about 747.6877956811.

It can be divided in two parts, 417 and 985172, that added together give a palindrome (985589).

The spelling of 417985172 in words is "four hundred seventeen million, nine hundred eighty-five thousand, one hundred seventy-two".