200140640 has 48 divisors (see below), whose sum is σ = 540382752. Its totient is φ = 68619264.

The previous prime is 200140637. The next prime is 200140657. The reversal of 200140640 is 46041002.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 88229 + ... + 90468.

It is an arithmetic number, because the mean of its divisors is an integer number (11257974).

Almost surely, 2^200140640 is an apocalyptic number.

200140640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200140640 is an abundant number, since it is smaller than the sum of its proper divisors (340242112).

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

200140640 is a wasteful number, since it uses less digits than its factorization.

200140640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178719 (or 178711 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 200140640 is about 14147.1071247800. The cubic root of 200140640 is about 584.9405934756.

Adding to 200140640 its reverse (46041002), we get a palindrome (246181642).

The spelling of 200140640 in words is "two hundred million, one hundred forty thousand, six hundred forty".