12248784 has 30 divisors (see below), whose sum is σ = 34279986. Its totient is φ = 4082880.

The previous prime is 12248783. The next prime is 12248809. The reversal of 12248784 is 48784221.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 138384 = 3480^2 + 372^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12248783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42387 + ... + 42674.

Almost surely, 2^12248784 is an apocalyptic number.

It is an amenable number.

12248784 is an abundant number, since it is smaller than the sum of its proper divisors (22031202).

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

12248784 is a wasteful number, since it uses less digits than its factorization.

12248784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85075 (or 85066 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 12248784 is about 3499.8262814031. The cubic root of 12248784 is about 230.5141867444.

The spelling of 12248784 in words is "twelve million, two hundred forty-eight thousand, seven hundred eighty-four".