200840940 has 72 divisors (see below), whose sum is σ = 628887168. Its totient is φ = 51828480.

The previous prime is 200840929. The next prime is 200840951. The reversal of 200840940 is 49048002.

It is an interprime number because it is at equal distance from previous prime (200840929) and next prime (200840951).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12417 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (8734544).

Almost surely, 2^200840940 is an apocalyptic number.

200840940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200840940 is an abundant number, since it is smaller than the sum of its proper divisors (428046228).

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

200840940 is a wasteful number, since it uses less digits than its factorization.

200840940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36039 (or 36034 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 200840940 is about 14171.8361548530. The cubic root of 200840940 is about 585.6220426958.

Adding to 200840940 its reverse (49048002), we get a palindrome (249888942).

The spelling of 200840940 in words is "two hundred million, eight hundred forty thousand, nine hundred forty".