1831936 has 22 divisors (see below), whose sum is σ = 3664130. Its totient is φ = 915456.

The previous prime is 1831933. The next prime is 1831939. The reversal of 1831936 is 6391381.

It is an interprime number because it is at equal distance from previous prime (1831933) and next prime (1831939).

It can be written as a sum of positive squares in only one way, i.e., 1806336 + 25600 = 1344^2 + 160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1831898 and 1831907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1831933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130 + ... + 1918.

2^1831936 is an apocalyptic number.

1831936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1831936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832065).

1831936 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1831936 is an equidigital number, since it uses as much as digits as its factorization.

1831936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1791 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 1831936 is about 1353.4903028836. The cubic root of 1831936 is about 122.3592385667.

The spelling of 1831936 in words is "one million, eight hundred thirty-one thousand, nine hundred thirty-six".