417018421 has 4 divisors (see below), whose sum is σ = 427189644. Its totient is φ = 406847200.

The previous prime is 417018367. The next prime is 417018461. The reversal of 417018421 is 124810714.

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

It can be written as a sum of positive squares in 2 ways, for example, as 193515921 + 223502500 = 13911^2 + 14950^2 .

It is a cyclic number.

It is not a de Polignac number, because 417018421 - 2¹¹ = 417016373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 417018421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417018461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5085550 + ... + 5085631.

It is an arithmetic number, because the mean of its divisors is an integer number (106797411).

Almost surely, 2^417018421 is an apocalyptic number.

417018421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

417018421 is a deficient number, since it is larger than the sum of its proper divisors (10171223).

417018421 is a wasteful number, since it uses less digits than its factorization.

417018421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10171222.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 417018421 is about 20421.0288918066. The cubic root of 417018421 is about 747.1109124469.

The spelling of 417018421 in words is "four hundred seventeen million, eighteen thousand, four hundred twenty-one".