1669164 has 48 divisors (see below), whose sum is σ = 4601856. Its totient is φ = 460800.

The previous prime is 1669163. The next prime is 1669177. The reversal of 1669164 is 4619661.

It is a super-2 number, since 2×1669164² = 5572216917792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2284 + ... + 2924.

It is an arithmetic number, because the mean of its divisors is an integer number (95872).

2^1669164 is an apocalyptic number.

1669164 is a gapful number since it is divisible by the number (14) 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 1669164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2300928).

1669164 is an abundant number, since it is smaller than the sum of its proper divisors (2932692).

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

1669164 is a wasteful number, since it uses less digits than its factorization.

1669164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 684 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 1669164 is about 1291.9612997300. The cubic root of 1669164 is about 118.6222989181.

The spelling of 1669164 in words is "one million, six hundred sixty-nine thousand, one hundred sixty-four".