1831648 has 96 divisors (see below), whose sum is σ = 4826304. Its totient is φ = 663552.

The previous prime is 1831633. The next prime is 1831667. The reversal of 1831648 is 8461381.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49486 + ... + 49522.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2^1831648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1831648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2413152).

1831648 is an abundant number, since it is smaller than the sum of its proper divisors (2994656).

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

1831648 is a wasteful number, since it uses less digits than its factorization.

1831648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 76 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 1831648 is about 1353.3839071010. The cubic root of 1831648 is about 122.3528261688.

The spelling of 1831648 in words is "one million, eight hundred thirty-one thousand, six hundred forty-eight".