12567940 has 48 divisors (see below), whose sum is σ = 32909184. Its totient is φ = 3916800.

The previous prime is 12567937. The next prime is 12567953. The reversal of 12567940 is 4976521.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12567896 and 12567905.

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 15 ways as a sum of consecutive naturals, for example, 2541 + ... + 5620.

It is an arithmetic number, because the mean of its divisors is an integer number (685608).

Almost surely, 2^12567940 is an apocalyptic number.

12567940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12567940 is an abundant number, since it is smaller than the sum of its proper divisors (20341244).

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

12567940 is a wasteful number, since it uses less digits than its factorization.

12567940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8188 (or 8186 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12567940 is about 3545.1290526580. The cubic root of 12567940 is about 232.4991482606.

The spelling of 12567940 in words is "twelve million, five hundred sixty-seven thousand, nine hundred forty".