12790428 has 24 divisors (see below), whose sum is σ = 34108032. Its totient is φ = 3654384.

The previous prime is 12790423. The next prime is 12790429. The reversal of 12790428 is 82409721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790423) 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, 76050 + ... + 76217.

It is an arithmetic number, because the mean of its divisors is an integer number (1421168).

Almost surely, 2^12790428 is an apocalyptic number.

It is an amenable number.

12790428 is an abundant number, since it is smaller than the sum of its proper divisors (21317604).

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

12790428 is a wasteful number, since it uses less digits than its factorization.

12790428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152281 (or 152279 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12790428 is about 3576.3707861462. The cubic root of 12790428 is about 233.8630947290.

The spelling of 12790428 in words is "twelve million, seven hundred ninety thousand, four hundred twenty-eight".