1898338 has 8 divisors (see below), whose sum is σ = 3066588. Its totient is φ = 876144.

The previous prime is 1898317. The next prime is 1898353. The reversal of 1898338 is 8338981.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 2209 = 1377^2 + 47^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 1898338.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36481 + ... + 36532.

2^1898338 is an apocalyptic number.

1898338 is a deficient number, since it is larger than the sum of its proper divisors (1168250).

1898338 is a wasteful number, since it uses less digits than its factorization.

1898338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73028.

The product of its digits is 41472, while the sum is 40.

The square root of 1898338 is about 1377.8018725492. The cubic root of 1898338 is about 123.8201085578.

The spelling of 1898338 in words is "one million, eight hundred ninety-eight thousand, three hundred thirty-eight".