426218 has 16 divisors (see below), whose sum is σ = 699720. Its totient is φ = 194688.

The previous prime is 426211. The next prime is 426229. The reversal of 426218 is 812624.

It can be written as a sum of positive squares in 4 ways, for example, as 12769 + 413449 = 113^2 + 643^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 426193 and 426202.

It is not an unprimeable number, because it can be changed into a prime (426211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4346 + ... + 4442.

2⁴²⁶²¹⁸ is an apocalyptic number.

426218 is a deficient number, since it is larger than the sum of its proper divisors (273502).

426218 is an equidigital number, since it uses as much as digits as its factorization.

426218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 112 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 426218 is about 652.8537355335. The cubic root of 426218 is about 75.2564848368.

The spelling of 426218 in words is "four hundred twenty-six thousand, two hundred eighteen".