12250428 has 24 divisors (see below), whose sum is σ = 28764288. Its totient is φ = 4057776.

The previous prime is 12250397. The next prime is 12250463. The reversal of 12250428 is 82405221.

It is a junction number, because it is equal to n+sod(n) for n = 12250398 and 12250407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (1198512).

Almost surely, 2^12250428 is an apocalyptic number.

It is an amenable number.

12250428 is an abundant number, since it is smaller than the sum of its proper divisors (16513860).

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

12250428 is a wasteful number, since it uses less digits than its factorization.

12250428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433 (or 6431 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 12250428 is about 3500.0611423231. The cubic root of 12250428 is about 230.5244992883.

Adding to 12250428 its reverse (82405221), we get a palindrome (94655649).

The spelling of 12250428 in words is "twelve million, two hundred fifty thousand, four hundred twenty-eight".