12465638 has 16 divisors (see below), whose sum is σ = 19170000. Its totient is φ = 6077472.

The previous prime is 12465623. The next prime is 12465671. The reversal of 12465638 is 83656421.

It is a junction number, because it is equal to n+sod(n) for n = 12465598 and 12465607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17228 + ... + 17936.

It is an arithmetic number, because the mean of its divisors is an integer number (1198125).

Almost surely, 2^12465638 is an apocalyptic number.

12465638 is a deficient number, since it is larger than the sum of its proper divisors (6704362).

12465638 is a wasteful number, since it uses less digits than its factorization.

12465638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919.

The product of its digits is 34560, while the sum is 35.

The square root of 12465638 is about 3530.6710410346. The cubic root of 12465638 is about 231.8665874848.

The spelling of 12465638 in words is "twelve million, four hundred sixty-five thousand, six hundred thirty-eight".