1641248 has 48 divisors (see below), whose sum is σ = 3919104. Its totient is φ = 660480.

The previous prime is 1641229. The next prime is 1641253. The reversal of 1641248 is 8421461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3593 + ... + 4023.

It is an arithmetic number, because the mean of its divisors is an integer number (81648).

2^1641248 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 1641248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1959552).

1641248 is an abundant number, since it is smaller than the sum of its proper divisors (2277856).

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

1641248 is a wasteful number, since it uses less digits than its factorization.

1641248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 457 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 1641248 is about 1281.1120169603. The cubic root of 1641248 is about 117.9572764992.

The spelling of 1641248 in words is "one million, six hundred forty-one thousand, two hundred forty-eight".