1669264 has 45 divisors (see below), whose sum is σ = 3625977. Its totient is φ = 744192.

The previous prime is 1669259. The next prime is 1669279. The reversal of 1669264 is 4629661.

The square root of 1669264 is 1292.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 369664 = 1140^2 + 608^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87847 + ... + 87865.

2^1669264 is an apocalyptic number.

1669264 is the 1292-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669264

1669264 is an abundant number, since it is smaller than the sum of its proper divisors (1956713).

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

1669264 is a wasteful number, since it uses less digits than its factorization.

1669264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 38 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The cubic root of 1669264 is about 118.6246677672.

The spelling of 1669264 in words is "one million, six hundred sixty-nine thousand, two hundred sixty-four".