12873540 has 24 divisors (see below), whose sum is σ = 36046080. Its totient is φ = 3432928.

The previous prime is 12873527. The next prime is 12873547. The reversal of 12873540 is 4537821.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12873498 and 12873507.

It is not an unprimeable number, because it can be changed into a prime (12873547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107220 + ... + 107339.

It is an arithmetic number, because the mean of its divisors is an integer number (1501920).

Almost surely, 2^12873540 is an apocalyptic number.

12873540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12873540 is an abundant number, since it is smaller than the sum of its proper divisors (23172540).

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

12873540 is a wasteful number, since it uses less digits than its factorization.

12873540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214571 (or 214569 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 12873540 is about 3587.9715717937. The cubic root of 12873540 is about 234.3685477335.

The spelling of 12873540 in words is "twelve million, eight hundred seventy-three thousand, five hundred forty".