12969440 has 48 divisors (see below), whose sum is σ = 33430320. Its totient is φ = 4715520.

The previous prime is 12969433. The next prime is 12969443. The reversal of 12969440 is 4496921.

12969440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12969440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12969443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925 + ... + 5444.

It is an arithmetic number, because the mean of its divisors is an integer number (696465).

Almost surely, 2^12969440 is an apocalyptic number.

12969440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12969440 is an abundant number, since it is smaller than the sum of its proper divisors (20460880).

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

12969440 is a wasteful number, since it uses less digits than its factorization.

12969440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395 (or 7387 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 12969440 is about 3601.3108724463. The cubic root of 12969440 is about 234.9490760337.

The spelling of 12969440 in words is "twelve million, nine hundred sixty-nine thousand, four hundred forty".