12488140 has 36 divisors (see below), whose sum is σ = 30509136. Its totient is φ = 4281312.

The previous prime is 12488131. The next prime is 12488159. The reversal of 12488140 is 4188421.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 12488099 and 12488108.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5392 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (847476).

Almost surely, 2^12488140 is an apocalyptic number.

12488140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12488140 is an abundant number, since it is smaller than the sum of its proper divisors (18020996).

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

12488140 is a wasteful number, since it uses less digits than its factorization.

12488140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766 (or 12757 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 12488140 is about 3533.8562506135. The cubic root of 12488140 is about 232.0060194633.

The spelling of 12488140 in words is "twelve million, four hundred eighty-eight thousand, one hundred forty".