1280530512 has 40 divisors (see below), whose sum is σ = 3675598080. Its totient is φ = 426843360.

The previous prime is 1280530481. The next prime is 1280530519. The reversal of 1280530512 is 2150350821.

It is a happy number.

1280530512 is a `hidden beast` number, since 1 + 2 + 80 + 530 + 51 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280530519) 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, 1481664 + ... + 1482527.

It is an arithmetic number, because the mean of its divisors is an integer number (91889952).

Almost surely, 2^1280530512 is an apocalyptic number.

1280530512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1280530512 is an abundant number, since it is smaller than the sum of its proper divisors (2395067568).

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

1280530512 is a wasteful number, since it uses less digits than its factorization.

1280530512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964208 (or 2964196 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1280530512 is about 35784.5010025290. The cubic root of 1280530512 is about 1085.9170291607.

The spelling of 1280530512 in words is "one billion, two hundred eighty million, five hundred thirty thousand, five hundred twelve".