1831248 has 70 divisors (see below), whose sum is σ = 5353514. Its totient is φ = 606528.

The previous prime is 1831243. The next prime is 1831253. The reversal of 1831248 is 8421381.

It is an interprime number because it is at equal distance from previous prime (1831243) and next prime (1831253).

It can be written as a sum of positive squares in only one way, i.e., 1411344 + 419904 = 1188^2 + 648^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1831243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11586 + ... + 11742.

2^1831248 is an apocalyptic number.

1831248 is a gapful number since it is divisible by the number (18) 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 1831248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2676757).

1831248 is an abundant number, since it is smaller than the sum of its proper divisors (3522266).

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

1831248 is an equidigital number, since it uses as much as digits as its factorization.

1831248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 162 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1831248 is about 1353.2361213033. The cubic root of 1831248 is about 122.3439189455.

It can be divided in two parts, 183 and 1248, that added together give a triangular number (1431 = T₅₃).

The spelling of 1831248 in words is "one million, eight hundred thirty-one thousand, two hundred forty-eight".