1898865341 has 4 divisors (see below), whose sum is σ = 1902036000. Its totient is φ = 1895694684.

The previous prime is 1898865329. The next prime is 1898865343. The reversal of 1898865341 is 1435688981.

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 1898865341 - 2¹⁴ = 1898848957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898865343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1584431 + ... + 1585628.

It is an arithmetic number, because the mean of its divisors is an integer number (475509000).

Almost surely, 2^1898865341 is an apocalyptic number.

It is an amenable number.

1898865341 is a deficient number, since it is larger than the sum of its proper divisors (3170659).

1898865341 is an equidigital number, since it uses as much as digits as its factorization.

1898865341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170658.

The product of its digits is 1658880, while the sum is 53.

The square root of 1898865341 is about 43575.9720602995. The cubic root of 1898865341 is about 1238.3157286232.

The spelling of 1898865341 in words is "one billion, eight hundred ninety-eight million, eight hundred sixty-five thousand, three hundred forty-one".