1280873088 has 240 divisors, whose sum is σ = 4193996730. Its totient is φ = 387763200.

The previous prime is 1280873081. The next prime is 1280873147. The reversal of 1280873088 is 8803780821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1054430784 + 226442304 = 32472^2 + 15048^2 .

It is not an unprimeable number, because it can be changed into a prime (1280873081) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1254018 + ... + 1255038.

Almost surely, 2^1280873088 is an apocalyptic number.

1280873088 is a gapful number since it is divisible by the number (18) 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 1280873088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096998365).

1280873088 is an abundant number, since it is smaller than the sum of its proper divisors (2913123642).

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

1280873088 is a wasteful number, since it uses less digits than its factorization.

1280873088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 1280873088 is about 35789.2873357378. The cubic root of 1280873088 is about 1086.0138577640.

The spelling of 1280873088 in words is "one billion, two hundred eighty million, eight hundred seventy-three thousand, eighty-eight".