200243240 has 16 divisors (see below), whose sum is σ = 450547380. Its totient is φ = 80097280.

The previous prime is 200243237. The next prime is 200243243. The reversal of 200243240 is 42342002.

It is an interprime number because it is at equal distance from previous prime (200243237) and next prime (200243243).

It can be written as a sum of positive squares in 2 ways, for example, as 193822084 + 6421156 = 13922^2 + 2534^2 .

It is not an unprimeable number, because it can be changed into a prime (200243243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503001 + ... + 2503080.

Almost surely, 2^200243240 is an apocalyptic number.

200243240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200243240 is an abundant number, since it is smaller than the sum of its proper divisors (250304140).

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

200243240 is a wasteful number, since it uses less digits than its factorization.

200243240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006092 (or 5006088 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 200243240 is about 14150.7328432135. The cubic root of 200243240 is about 585.0405309537.

Adding to 200243240 its reverse (42342002), we get a palindrome (242585242).

The spelling of 200243240 in words is "two hundred million, two hundred forty-three thousand, two hundred forty".