200123340 has 24 divisors (see below), whose sum is σ = 560345520. Its totient is φ = 53366208.

The previous prime is 200123317. The next prime is 200123377. The reversal of 200123340 is 43321002.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1667635 + ... + 1667754.

It is an arithmetic number, because the mean of its divisors is an integer number (23347730).

Almost surely, 2^200123340 is an apocalyptic number.

200123340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200123340 is an abundant number, since it is smaller than the sum of its proper divisors (360222180).

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

200123340 is a wasteful number, since it uses less digits than its factorization.

200123340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335401 (or 3335399 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 200123340 is about 14146.4956791426. The cubic root of 200123340 is about 584.9237390546.

Adding to 200123340 its reverse (43321002), we get a palindrome (243444342).

The spelling of 200123340 in words is "two hundred million, one hundred twenty-three thousand, three hundred forty".