12270528 has 98 divisors (see below), whose sum is σ = 36646104. Its totient is φ = 4074624.

The previous prime is 12270487. The next prime is 12270541. The reversal of 12270528 is 82507221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 46525 + ... + 46787.

Almost surely, 2^12270528 is an apocalyptic number.

12270528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12270528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18323052).

12270528 is an abundant number, since it is smaller than the sum of its proper divisors (24375576).

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

12270528 is an frugal number, since it uses more digits than its factorization.

12270528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12270528 is about 3502.9313438890. The cubic root of 12270528 is about 230.6505087787.

Adding to 12270528 its reverse (82507221), we get a palindrome (94777749).

The spelling of 12270528 in words is "twelve million, two hundred seventy thousand, five hundred twenty-eight".