418420 has 12 divisors (see below), whose sum is σ = 878724. Its totient is φ = 167360.

The previous prime is 418391. The next prime is 418423. The reversal of 418420 is 24814.

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 191844 = 476^2 + 438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418423) 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, 10441 + ... + 10480.

It is an arithmetic number, because the mean of its divisors is an integer number (73227).

2⁴¹⁸⁴²⁰ is an apocalyptic number.

It is an amenable number.

418420 is an abundant number, since it is smaller than the sum of its proper divisors (460304).

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

418420 is a wasteful number, since it uses less digits than its factorization.

418420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20930 (or 20928 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 418420 is about 646.8539247775. The cubic root of 418420 is about 74.7946977854.

It can be divided in two parts, 418 and 420, that added together give a palindrome (838).

The spelling of 418420 in words is "four hundred eighteen thousand, four hundred twenty".