200421760 has 256 divisors, whose sum is σ = 616896000. Its totient is φ = 61716480.

The previous prime is 200421757. The next prime is 200421787. The reversal of 200421760 is 67124002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2414679 + ... + 2414761.

It is an arithmetic number, because the mean of its divisors is an integer number (2409750).

Almost surely, 2^200421760 is an apocalyptic number.

200421760 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 200421760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308448000).

200421760 is an abundant number, since it is smaller than the sum of its proper divisors (416474240).

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

200421760 is an equidigital number, since it uses as much as digits as its factorization.

200421760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 200421760 is about 14157.0392384849. The cubic root of 200421760 is about 585.2143369274.

Adding to 200421760 its reverse (67124002), we get a palindrome (267545762).

The spelling of 200421760 in words is "two hundred million, four hundred twenty-one thousand, seven hundred sixty".