12280764 has 48 divisors (see below), whose sum is σ = 30692480. Its totient is φ = 3810240.

The previous prime is 12280759. The next prime is 12280769. The reversal of 12280764 is 46708221.

It is an interprime number because it is at equal distance from previous prime (12280759) and next prime (12280769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13467 + ... + 14349.

Almost surely, 2^12280764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12280764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15346240).

12280764 is an abundant number, since it is smaller than the sum of its proper divisors (18411716).

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

12280764 is a wasteful number, since it uses less digits than its factorization.

12280764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12280764 is about 3504.3921013494. The cubic root of 12280764 is about 230.7146267047.

Adding to 12280764 its reverse (46708221), we get a palindrome (58988985).

The spelling of 12280764 in words is "twelve million, two hundred eighty thousand, seven hundred sixty-four".