12408645 has 16 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 6583104.

The previous prime is 12408631. The next prime is 12408659. The reversal of 12408645 is 54680421.

It is an interprime number because it is at equal distance from previous prime (12408631) and next prime (12408659).

It is not a de Polignac number, because 12408645 - 2⁶ = 12408581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 2^12408645 is an apocalyptic number.

12408645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12408645 is a deficient number, since it is larger than the sum of its proper divisors (7549755).

12408645 is a wasteful number, since it uses less digits than its factorization.

12408645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 12408645 is about 3522.5906659730. The cubic root of 12408645 is about 231.5126822647.

The spelling of 12408645 in words is "twelve million, four hundred eight thousand, six hundred forty-five".