1669068 has 36 divisors (see below), whose sum is σ = 4285008. Its totient is φ = 547680.

The previous prime is 1669061. The next prime is 1669091. The reversal of 1669068 is 8609661.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (1669061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2230 + ... + 2882.

It is an arithmetic number, because the mean of its divisors is an integer number (119028).

2^1669068 is an apocalyptic number.

1669068 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 1669068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2142504).

1669068 is an abundant number, since it is smaller than the sum of its proper divisors (2615940).

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

1669068 is a wasteful number, since it uses less digits than its factorization.

1669068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1669068 is about 1291.9241463801. The cubic root of 1669068 is about 118.6200247339.

The spelling of 1669068 in words is "one million, six hundred sixty-nine thousand, sixty-eight".