12280635 has 12 divisors (see below), whose sum is σ = 21286512. Its totient is φ = 6549648.

The previous prime is 12280621. The next prime is 12280661. The reversal of 12280635 is 53608221.

12280635 is a `hidden beast` number, since 1 + 2 + 28 + 0 + 635 = 666.

It is not a de Polignac number, because 12280635 - 2⁸ = 12280379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12280599 and 12280608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136407 + ... + 136496.

It is an arithmetic number, because the mean of its divisors is an integer number (1773876).

Almost surely, 2^12280635 is an apocalyptic number.

12280635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12280635 is a deficient number, since it is larger than the sum of its proper divisors (9005877).

12280635 is a wasteful number, since it uses less digits than its factorization.

12280635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272914 (or 272911 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12280635 is about 3504.3736958264. The cubic root of 12280635 is about 230.7138188751.

Adding to 12280635 its reverse (53608221), we get a palindrome (65888856).

The spelling of 12280635 in words is "twelve million, two hundred eighty thousand, six hundred thirty-five".