12499680 has 48 divisors (see below), whose sum is σ = 39375504. Its totient is φ = 3333120.

The previous prime is 12499661. The next prime is 12499687. The reversal of 12499680 is 8699421.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12541 + ... + 13500.

It is an arithmetic number, because the mean of its divisors is an integer number (820323).

Almost surely, 2^12499680 is an apocalyptic number.

12499680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12499680 is an abundant number, since it is smaller than the sum of its proper divisors (26875824).

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

12499680 is a wasteful number, since it uses less digits than its factorization.

12499680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26059 (or 26051 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 12499680 is about 3535.4886508091. The cubic root of 12499680 is about 232.0774612525.

The spelling of 12499680 in words is "twelve million, four hundred ninety-nine thousand, six hundred eighty".