1838200001 has 4 divisors (see below), whose sum is σ = 2005309104. Its totient is φ = 1671090900.

The previous prime is 1838199989. The next prime is 1838200057. The reversal of 1838200001 is 1000028381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1838200001 - 2¹⁰ = 1838198977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1838200001.

It is not an unprimeable number, because it can be changed into a prime (1838200081) 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, 83554535 + ... + 83554556.

It is an arithmetic number, because the mean of its divisors is an integer number (501327276).

Almost surely, 2^1838200001 is an apocalyptic number.

1838200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1838200001 is a deficient number, since it is larger than the sum of its proper divisors (167109103).

1838200001 is a wasteful number, since it uses less digits than its factorization.

1838200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167109102.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1838200001 is about 42874.2346987092. The cubic root of 1838200001 is about 1224.9854227892.

Adding to 1838200001 its reverse (1000028381), we get a palindrome (2838228382).

The spelling of 1838200001 in words is "one billion, eight hundred thirty-eight million, two hundred thousand, one".