12720350 has 12 divisors (see below), whose sum is σ = 23659944. Its totient is φ = 5088120.

The previous prime is 12720349. The next prime is 12720359. The reversal of 12720350 is 5302721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720359) 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 5 ways as a sum of consecutive naturals, for example, 127154 + ... + 127253.

It is an arithmetic number, because the mean of its divisors is an integer number (1971662).

Almost surely, 2^12720350 is an apocalyptic number.

12720350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12720350 is a deficient number, since it is larger than the sum of its proper divisors (10939594).

12720350 is a wasteful number, since it uses less digits than its factorization.

12720350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254419 (or 254414 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 12720350 is about 3566.5599672514. The cubic root of 12720350 is about 233.4352049502.

The spelling of 12720350 in words is "twelve million, seven hundred twenty thousand, three hundred fifty".