200021140 has 48 divisors (see below), whose sum is σ = 461228544. Its totient is φ = 72259200.

The previous prime is 200021123. The next prime is 200021153. The reversal of 200021140 is 41120002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 31645 + ... + 37435.

It is an arithmetic number, because the mean of its divisors is an integer number (9608928).

Almost surely, 2^200021140 is an apocalyptic number.

200021140 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 200021140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230614272).

200021140 is an abundant number, since it is smaller than the sum of its proper divisors (261207404).

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

200021140 is a wasteful number, since it uses less digits than its factorization.

200021140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968 (or 5966 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 200021140 is about 14142.8830158493. The cubic root of 200021140 is about 584.8241514950.

Adding to 200021140 its reverse (41120002), we get a palindrome (241141142).

The spelling of 200021140 in words is "two hundred million, twenty-one thousand, one hundred forty".