418478 has 8 divisors (see below), whose sum is σ = 635040. Its totient is φ = 206800.

The previous prime is 418471. The next prime is 418493. The reversal of 418478 is 874814.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 418478.

It is not an unprimeable number, because it can be changed into a prime (418471) 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, 998 + ... + 1353.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁴¹⁸⁴⁷⁸ is an apocalyptic number.

418478 is a deficient number, since it is larger than the sum of its proper divisors (216562).

418478 is a wasteful number, since it uses less digits than its factorization.

418478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its digits is 7168, while the sum is 32.

The square root of 418478 is about 646.8987556025. The cubic root of 418478 is about 74.7981535571.

The spelling of 418478 in words is "four hundred eighteen thousand, four hundred seventy-eight".