12642435 has 24 divisors (see below), whose sum is σ = 23600304. Its totient is φ = 6223680.

The previous prime is 12642397. The next prime is 12642437. The reversal of 12642435 is 53424621.

12642435 is a `hidden beast` number, since 12 + 642 + 4 + 3 + 5 = 666.

12642435 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12642435 - 2¹⁰ = 12641411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12642399 and 12642408.

It is not an unprimeable number, because it can be changed into a prime (12642437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10221 + ... + 11390.

It is an arithmetic number, because the mean of its divisors is an integer number (983346).

Almost surely, 2^12642435 is an apocalyptic number.

12642435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12642435 is a deficient number, since it is larger than the sum of its proper divisors (10957869).

12642435 is a wasteful number, since it uses less digits than its factorization.

12642435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635 (or 21632 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 12642435 is about 3555.6201990651. The cubic root of 12642435 is about 232.9576141531.

The spelling of 12642435 in words is "twelve million, six hundred forty-two thousand, four hundred thirty-five".