418220 has 24 divisors (see below), whose sum is σ = 958608. Its totient is φ = 152000.

The previous prime is 418219. The next prime is 418259. The reversal of 418220 is 22814.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (39942).

2⁴¹⁸²²⁰ is an apocalyptic number.

It is an amenable number.

418220 is an abundant number, since it is smaller than the sum of its proper divisors (540388).

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

418220 is a wasteful number, since it uses less digits than its factorization.

418220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 418220 is about 646.6993118908. The cubic root of 418220 is about 74.7827788813.

The spelling of 418220 in words is "four hundred eighteen thousand, two hundred twenty".