12645888 has 40 divisors (see below), whose sum is σ = 33693528. Its totient is φ = 4214784.

The previous prime is 12645877. The next prime is 12645889. The reversal of 12645888 is 88854621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2581 + ... + 5652.

Almost surely, 2^12645888 is an apocalyptic number.

It is an amenable number.

12645888 is an abundant number, since it is smaller than the sum of its proper divisors (21047640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12645888 is an frugal number, since it uses more digits than its factorization.

12645888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8254 (or 8238 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 12645888 is about 3556.1057352109. The cubic root of 12645888 is about 232.9788212866.

It can be divided in two parts, 12 and 645888, that multiplied together give a square (7750656 = 2784²).

The spelling of 12645888 in words is "twelve million, six hundred forty-five thousand, eight hundred eighty-eight".