12950140 has 48 divisors (see below), whose sum is σ = 31292352. Its totient is φ = 4409856.

The previous prime is 12950131. The next prime is 12950143. The reversal of 12950140 is 4105921.

It is a super-2 number, since 2×12950140² = 335412252039200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950143) by changing a digit.

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, 32422 + ... + 32818.

It is an arithmetic number, because the mean of its divisors is an integer number (651924).

Almost surely, 2^12950140 is an apocalyptic number.

12950140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12950140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15646176).

12950140 is an abundant number, since it is smaller than the sum of its proper divisors (18342212).

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

12950140 is a wasteful number, since it uses less digits than its factorization.

12950140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12950140 is about 3598.6302949872. The cubic root of 12950140 is about 234.8324745377.

The spelling of 12950140 in words is "twelve million, nine hundred fifty thousand, one hundred forty".