12785448 has 64 divisors (see below), whose sum is σ = 35259840. Its totient is φ = 3838464.

The previous prime is 12785419. The next prime is 12785449. The reversal of 12785448 is 84458721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12940 + ... + 13892.

It is an arithmetic number, because the mean of its divisors is an integer number (550935).

Almost surely, 2^12785448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12785448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17629920).

12785448 is an abundant number, since it is smaller than the sum of its proper divisors (22474392).

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

12785448 is a wasteful number, since it uses less digits than its factorization.

12785448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1014 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 12785448 is about 3575.6744818286. The cubic root of 12785448 is about 233.8327389714.

The spelling of 12785448 in words is "twelve million, seven hundred eighty-five thousand, four hundred forty-eight".