1333280 has 48 divisors (see below), whose sum is σ = 3397464. Its totient is φ = 491520.

The previous prime is 1333273. The next prime is 1333289. The reversal of 1333280 is 823331.

1333280 = T₅ + T₆ + ... + T₁₉₉.

It can be written as a sum of positive squares in 4 ways, for example, as 1106704 + 226576 = 1052^2 + 476^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1333289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760 + ... + 2400.

2^1333280 is an apocalyptic number.

1333280 is a gapful number since it is divisible by the number (10) 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 1333280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698732).

1333280 is an abundant number, since it is smaller than the sum of its proper divisors (2064184).

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

1333280 is a wasteful number, since it uses less digits than its factorization.

1333280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1333280 is about 1154.6774441375. The cubic root of 1333280 is about 110.0627740870.

The spelling of 1333280 in words is "one million, three hundred thirty-three thousand, two hundred eighty".