220002426 has 32 divisors (see below), whose sum is σ = 558737280. Its totient is φ = 62857728.

The previous prime is 220002421. The next prime is 220002427. The reversal of 220002426 is 624200022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220002399 and 220002408.

It is not an unprimeable number, because it can be changed into a prime (220002421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290631 + ... + 291386.

It is an arithmetic number, because the mean of its divisors is an integer number (17460540).

Almost surely, 2^220002426 is an apocalyptic number.

220002426 is an abundant number, since it is smaller than the sum of its proper divisors (338734854).

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

220002426 is a wasteful number, since it uses less digits than its factorization.

220002426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582035 (or 582029 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220002426 is about 14832.4787544092. The cubic root of 220002426 is about 603.6832926569.

Adding to 220002426 its reverse (624200022), we get a palindrome (844202448).

The spelling of 220002426 in words is "two hundred twenty million, two thousand, four hundred twenty-six".