12765428 has 24 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 5700960.

The previous prime is 12765427. The next prime is 12765433. The reversal of 12765428 is 82456721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765427) 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, 2348 + ... + 5571.

It is an arithmetic number, because the mean of its divisors is an integer number (1034880).

Almost surely, 2^12765428 is an apocalyptic number.

It is an amenable number.

12765428 is a deficient number, since it is larger than the sum of its proper divisors (12071692).

12765428 is a wasteful number, since it uses less digits than its factorization.

12765428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967 (or 7965 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 12765428 is about 3572.8739132525. The cubic root of 12765428 is about 233.7106267865.

The spelling of 12765428 in words is "twelve million, seven hundred sixty-five thousand, four hundred twenty-eight".