12728350 has 24 divisors (see below), whose sum is σ = 23815440. Its totient is φ = 5061120.

The previous prime is 12728341. The next prime is 12728351. The reversal of 12728350 is 5382721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8991 + ... + 10309.

It is an arithmetic number, because the mean of its divisors is an integer number (992310).

Almost surely, 2^12728350 is an apocalyptic number.

12728350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12728350 is a deficient number, since it is larger than the sum of its proper divisors (11087090).

12728350 is a wasteful number, since it uses less digits than its factorization.

12728350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12728350 is about 3567.6813198491. The cubic root of 12728350 is about 233.4841315464.

The spelling of 12728350 in words is "twelve million, seven hundred twenty-eight thousand, three hundred fifty".