12939570 has 192 divisors, whose sum is σ = 43130880. Its totient is φ = 2623104.

The previous prime is 12939541. The next prime is 12939571. The reversal of 12939570 is 7593921.

It is not an unprimeable number, because it can be changed into a prime (12939571) 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 95 ways as a sum of consecutive naturals, for example, 275287 + ... + 275333.

It is an arithmetic number, because the mean of its divisors is an integer number (224640).

Almost surely, 2^12939570 is an apocalyptic number.

12939570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12939570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21565440).

12939570 is an abundant number, since it is smaller than the sum of its proper divisors (30191310).

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

12939570 is a wasteful number, since it uses less digits than its factorization.

12939570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 12939570 is about 3597.1613808669. The cubic root of 12939570 is about 234.7685664799.

The spelling of 12939570 in words is "twelve million, nine hundred thirty-nine thousand, five hundred seventy".