1831338 has 12 divisors (see below), whose sum is σ = 3967938. Its totient is φ = 610440.

The previous prime is 1831331. The next prime is 1831339. The reversal of 1831338 is 8331381.

It can be written as a sum of positive squares in only one way, i.e., 1830609 + 729 = 1353^2 + 27^2 .

It is not an unprimeable number, because it can be changed into a prime (1831331) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 50853 + ... + 50888.

2^1831338 is an apocalyptic number.

1831338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1831338 is an abundant number, since it is smaller than the sum of its proper divisors (2136600).

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

1831338 is a wasteful number, since it uses less digits than its factorization.

1831338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101749 (or 101746 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1831338 is about 1353.2693745149. The cubic root of 1831338 is about 122.3459231838.

It can be divided in two parts, 183 and 1338, that added together give a square (1521 = 39²).

The spelling of 1831338 in words is "one million, eight hundred thirty-one thousand, three hundred thirty-eight".