200420000 has 120 divisors (see below), whose sum is σ = 538477632. Its totient is φ = 72800000.

The previous prime is 200419969. The next prime is 200420023. The reversal of 200420000 is 24002.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 200420000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219545 + ... + 220455.

Almost surely, 2^200420000 is an apocalyptic number.

200420000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269238816).

200420000 is an abundant number, since it is smaller than the sum of its proper divisors (338057632).

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

200420000 is an equidigital number, since it uses as much as digits as its factorization.

200420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 200420000 is about 14156.9770784585. The cubic root of 200420000 is about 585.2126239060.

Adding to 200420000 its reverse (24002), we get a palindrome (200444002).

The spelling of 200420000 in words is "two hundred million, four hundred twenty thousand".