1669248 has 160 divisors (see below), whose sum is σ = 5924160. Its totient is φ = 456192.

The previous prime is 1669243. The next prime is 1669249. The reversal of 1669248 is 8429661.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1669243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72565 + ... + 72587.

It is an arithmetic number, because the mean of its divisors is an integer number (37026).

2^1669248 is an apocalyptic number.

1669248 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 1669248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2962080).

1669248 is an abundant number, since it is smaller than the sum of its proper divisors (4254912).

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

1669248 is an equidigital number, since it uses as much as digits as its factorization.

1669248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 35 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1669248 is about 1291.9938080347. The cubic root of 1669248 is about 118.6242887577.

The spelling of 1669248 in words is "one million, six hundred sixty-nine thousand, two hundred forty-eight".