12257980 has 24 divisors (see below), whose sum is σ = 29419488. Its totient is φ = 4202688.

The previous prime is 12257977. The next prime is 12258007. The reversal of 12257980 is 8975221.

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 7 ways as a sum of consecutive naturals, for example, 43639 + ... + 43918.

It is an arithmetic number, because the mean of its divisors is an integer number (1225812).

Almost surely, 2^12257980 is an apocalyptic number.

12257980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12257980 is an abundant number, since it is smaller than the sum of its proper divisors (17161508).

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

12257980 is a wasteful number, since it uses less digits than its factorization.

12257980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87573 (or 87571 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12257980 is about 3501.1398144033. The cubic root of 12257980 is about 230.5718599030.

The spelling of 12257980 in words is "twelve million, two hundred fifty-seven thousand, nine hundred eighty".