12308516 has 24 divisors (see below), whose sum is σ = 23802240. Its totient is φ = 5522400.

The previous prime is 12308509. The next prime is 12308539. The reversal of 12308516 is 61580321.

It is a super-2 number, since 2×12308516² = 302999132244512, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1706 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (991760).

Almost surely, 2^12308516 is an apocalyptic number.

It is an amenable number.

12308516 is a deficient number, since it is larger than the sum of its proper divisors (11493724).

12308516 is a wasteful number, since it uses less digits than its factorization.

12308516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12308516 is about 3508.3494694799. The cubic root of 12308516 is about 230.8882851559. Note that the first 3 decimals are identical.

Adding to 12308516 its reverse (61580321), we get a palindrome (73888837).

The spelling of 12308516 in words is "twelve million, three hundred eight thousand, five hundred sixteen".