1280393130 has 16 divisors (see below), whose sum is σ = 3072943584. Its totient is φ = 341438160.

The previous prime is 1280393119. The next prime is 1280393171. The reversal of 1280393130 is 313930821.

1280393130 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 42679771 = 1280393130 / (1 + 2 + 8 + 0 + 3 + 9 + 3 + 1 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21339856 + ... + 21339915.

It is an arithmetic number, because the mean of its divisors is an integer number (192058974).

Almost surely, 2^1280393130 is an apocalyptic number.

1280393130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1280393130 is an abundant number, since it is smaller than the sum of its proper divisors (1792550454).

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

1280393130 is a wasteful number, since it uses less digits than its factorization.

1280393130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42679781.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1280393130 is about 35782.5813769773. The cubic root of 1280393130 is about 1085.8781934887.

The spelling of 1280393130 in words is "one billion, two hundred eighty million, three hundred ninety-three thousand, one hundred thirty".