12275280 has 80 divisors (see below), whose sum is σ = 42288960. Its totient is φ = 3272832.

The previous prime is 12275269. The next prime is 12275293. The reversal of 12275280 is 8257221.

12275280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682 + ... + 5001.

It is an arithmetic number, because the mean of its divisors is an integer number (528612).

Almost surely, 2^12275280 is an apocalyptic number.

12275280 is a gapful number since it is divisible by the number (10) 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 12275280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21144480).

12275280 is an abundant number, since it is smaller than the sum of its proper divisors (30013680).

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

12275280 is a wasteful number, since it uses less digits than its factorization.

12275280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705 (or 5693 counting only the distinct ones).

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

The square root of 12275280 is about 3503.6095672891. The cubic root of 12275280 is about 230.6802795639.

The spelling of 12275280 in words is "twelve million, two hundred seventy-five thousand, two hundred eighty".