1073280 has 128 divisors (see below), whose sum is σ = 3769920. Its totient is φ = 258048.

The previous prime is 1073279. The next prime is 1073297. The reversal of 1073280 is 823701.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24939 + ... + 24981.

2^1073280 is an apocalyptic number.

1073280 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 1073280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884960).

1073280 is an abundant number, since it is smaller than the sum of its proper divisors (2696640).

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

1073280 is a wasteful number, since it uses less digits than its factorization.

1073280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1073280 is about 1035.9922779635. The cubic root of 1073280 is about 102.3853169051.

Adding to 1073280 its reverse (823701), we get a palindrome (1896981).

The spelling of 1073280 in words is "one million, seventy-three thousand, two hundred eighty".