1328550 has 48 divisors (see below), whose sum is σ = 3495312. Its totient is φ = 332800.

The previous prime is 1328539. The next prime is 1328563. The reversal of 1328550 is 558231.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1328550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2290 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (72819).

2^1328550 is an apocalyptic number.

1328550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1328550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747656).

1328550 is an abundant number, since it is smaller than the sum of its proper divisors (2166762).

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

1328550 is a wasteful number, since it uses less digits than its factorization.

1328550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1328550 is about 1152.6274333018. The cubic root of 1328550 is about 109.9324654326.

The spelling of 1328550 in words is "one million, three hundred twenty-eight thousand, five hundred fifty".