12956450 has 48 divisors (see below), whose sum is σ = 26831616. Its totient is φ = 4622400.

The previous prime is 12956399. The next prime is 12956453. The reversal of 12956450 is 5465921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12956453) 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 23 ways as a sum of consecutive naturals, for example, 19829 + ... + 20471.

It is an arithmetic number, because the mean of its divisors is an integer number (558992).

Almost surely, 2^12956450 is an apocalyptic number.

12956450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12956450 is an abundant number, since it is smaller than the sum of its proper divisors (13875166).

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

12956450 is a wasteful number, since it uses less digits than its factorization.

12956450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 12956450 is about 3599.5069106754. The cubic root of 12956450 is about 234.8706093200.

It can be divided in two parts, 129564 and 50, that multiplied together give a triangular number (6478200 = T₃₅₉₉).

The spelling of 12956450 in words is "twelve million, nine hundred fifty-six thousand, four hundred fifty".