12370728 has 32 divisors (see below), whose sum is σ = 31764960. Its totient is φ = 4011840.

The previous prime is 12370727. The next prime is 12370741. The reversal of 12370728 is 82707321.

It is a super-2 number, since 2×12370728² = 306069822499968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12370695 and 12370704.

It is not an unprimeable number, because it can be changed into a prime (12370727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6078 + ... + 7853.

It is an arithmetic number, because the mean of its divisors is an integer number (992655).

Almost surely, 2^12370728 is an apocalyptic number.

It is an amenable number.

12370728 is an abundant number, since it is smaller than the sum of its proper divisors (19394232).

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

12370728 is a wasteful number, since it uses less digits than its factorization.

12370728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13977 (or 13973 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 12370728 is about 3517.2045718155. The cubic root of 12370728 is about 231.2766311672.

The spelling of 12370728 in words is "twelve million, three hundred seventy thousand, seven hundred twenty-eight".