1280328524 has 12 divisors (see below), whose sum is σ = 2240840448. Its totient is φ = 640088400.

The previous prime is 1280328523. The next prime is 1280328559. The reversal of 1280328524 is 4258230821.

It is a super-2 number, since 2×1280328524² = 3278482258736037152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1280328521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38054 + ... + 63314.

It is an arithmetic number, because the mean of its divisors is an integer number (186736704).

Almost surely, 2^1280328524 is an apocalyptic number.

It is an amenable number.

1280328524 is a deficient number, since it is larger than the sum of its proper divisors (960511924).

1280328524 is a wasteful number, since it uses less digits than its factorization.

1280328524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37936 (or 37934 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 1280328524 is about 35781.6786079133. The cubic root of 1280328524 is about 1085.8599294559.

The spelling of 1280328524 in words is "one billion, two hundred eighty million, three hundred twenty-eight thousand, five hundred twenty-four".