200312240 has 40 divisors (see below), whose sum is σ = 466830240. Its totient is φ = 79934976.

The previous prime is 200312213. The next prime is 200312279. The reversal of 200312240 is 42213002.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 33821 + ... + 39299.

It is an arithmetic number, because the mean of its divisors is an integer number (11670756).

Almost surely, 2^200312240 is an apocalyptic number.

200312240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200312240 is an abundant number, since it is smaller than the sum of its proper divisors (266518000).

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

200312240 is a wasteful number, since it uses less digits than its factorization.

200312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949 (or 5943 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 200312240 is about 14153.1706695002. The cubic root of 200312240 is about 585.1077211717.

Adding to 200312240 its reverse (42213002), we get a palindrome (242525242).

The spelling of 200312240 in words is "two hundred million, three hundred twelve thousand, two hundred forty".