418520 has 16 divisors (see below), whose sum is σ = 941760. Its totient is φ = 167392.

The previous prime is 418511. The next prime is 418553. The reversal of 418520 is 25814.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 418492 and 418501.

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 418520.

It is an unprimeable number.

418520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5192 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (58860).

2⁴¹⁸⁵²⁰ is an apocalyptic number.

418520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

418520 is an abundant number, since it is smaller than the sum of its proper divisors (523240).

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

418520 is a wasteful number, since it uses less digits than its factorization.

418520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10474 (or 10470 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 418520 is about 646.9312173639. The cubic root of 418520 is about 74.8006558132.

The spelling of 418520 in words is "four hundred eighteen thousand, five hundred twenty".