200018930 has 32 divisors (see below), whose sum is σ = 364371264. Its totient is φ = 79050816.

The previous prime is 200018849. The next prime is 200018953. The reversal of 200018930 is 39810002.

It is a junction number, because it is equal to n+sod(n) for n = 200018896 and 200018905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451289 + ... + 451731.

It is an arithmetic number, because the mean of its divisors is an integer number (11386602).

Almost surely, 2^200018930 is an apocalyptic number.

200018930 is a deficient number, since it is larger than the sum of its proper divisors (164352334).

200018930 is a wasteful number, since it uses less digits than its factorization.

200018930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 200018930 is about 14142.8048844633. The cubic root of 200018930 is about 584.8219976124.

Adding to 200018930 its reverse (39810002), we get a palindrome (239828932).

The spelling of 200018930 in words is "two hundred million, eighteen thousand, nine hundred thirty".