12580428 has 24 divisors (see below), whose sum is σ = 33548032. Its totient is φ = 3594384.

The previous prime is 12580427. The next prime is 12580429. The reversal of 12580428 is 82408521.

It is an interprime number because it is at equal distance from previous prime (12580427) and next prime (12580429).

It is a junction number, because it is equal to n+sod(n) for n = 12580395 and 12580404.

It is not an unprimeable number, because it can be changed into a prime (12580427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74800 + ... + 74967.

Almost surely, 2^12580428 is an apocalyptic number.

It is an amenable number.

12580428 is an abundant number, since it is smaller than the sum of its proper divisors (20967604).

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

12580428 is a wasteful number, since it uses less digits than its factorization.

12580428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149781 (or 149779 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 12580428 is about 3546.8899052550. The cubic root of 12580428 is about 232.5761295382.

Adding to 12580428 its reverse (82408521), we get a palindrome (94988949).

The spelling of 12580428 in words is "twelve million, five hundred eighty thousand, four hundred twenty-eight".