1073231280 has 360 divisors, whose sum is σ = 4034075136. Its totient is φ = 255467520.

The previous prime is 1073231279. The next prime is 1073231309. The reversal of 1073231280 is 821323701.

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8450577 + ... + 8450703.

Almost surely, 2^1073231280 is an apocalyptic number.

1073231280 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 1073231280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2017037568).

1073231280 is an abundant number, since it is smaller than the sum of its proper divisors (2960843856).

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

1073231280 is a wasteful number, since it uses less digits than its factorization.

1073231280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1073231280 is about 32760.2087905434. The cubic root of 1073231280 is about 1023.8376767033.

Adding to 1073231280 its reverse (821323701), we get a palindrome (1894554981).

The spelling of 1073231280 in words is "one billion, seventy-three million, two hundred thirty-one thousand, two hundred eighty".